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diff --git a/node_modules/iconv-lite/encodings/dbcs-codec.js b/node_modules/iconv-lite/encodings/dbcs-codec.js
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+"use strict"
+var Buffer = require("safer-buffer").Buffer
+
+// Multibyte codec. In this scheme, a character is represented by 1 or more bytes.
+// Our codec supports UTF-16 surrogates, extensions for GB18030 and unicode sequences.
+// To save memory and loading time, we read table files only when requested.
+
+exports._dbcs = DBCSCodec
+
+var UNASSIGNED = -1
+var GB18030_CODE = -2
+var SEQ_START = -10
+var NODE_START = -1000
+var UNASSIGNED_NODE = new Array(0x100)
+var DEF_CHAR = -1
+
+for (var i = 0; i < 0x100; i++) { UNASSIGNED_NODE[i] = UNASSIGNED }
+
+// Class DBCSCodec reads and initializes mapping tables.
+function DBCSCodec (codecOptions, iconv) {
+  this.encodingName = codecOptions.encodingName
+  if (!codecOptions) { throw new Error("DBCS codec is called without the data.") }
+  if (!codecOptions.table) { throw new Error("Encoding '" + this.encodingName + "' has no data.") }
+
+  // Load tables.
+  var mappingTable = codecOptions.table()
+
+  // Decode tables: MBCS -> Unicode.
+
+  // decodeTables is a trie, encoded as an array of arrays of integers. Internal arrays are trie nodes and all have len = 256.
+  // Trie root is decodeTables[0].
+  // Values: >=  0 -> unicode character code. can be > 0xFFFF
+  //         == UNASSIGNED -> unknown/unassigned sequence.
+  //         == GB18030_CODE -> this is the end of a GB18030 4-byte sequence.
+  //         <= NODE_START -> index of the next node in our trie to process next byte.
+  //         <= SEQ_START  -> index of the start of a character code sequence, in decodeTableSeq.
+  this.decodeTables = []
+  this.decodeTables[0] = UNASSIGNED_NODE.slice(0) // Create root node.
+
+  // Sometimes a MBCS char corresponds to a sequence of unicode chars. We store them as arrays of integers here.
+  this.decodeTableSeq = []
+
+  // Actual mapping tables consist of chunks. Use them to fill up decode tables.
+  for (var i = 0; i < mappingTable.length; i++) { this._addDecodeChunk(mappingTable[i]) }
+
+  // Load & create GB18030 tables when needed.
+  if (typeof codecOptions.gb18030 === "function") {
+    this.gb18030 = codecOptions.gb18030() // Load GB18030 ranges.
+
+    // Add GB18030 common decode nodes.
+    var commonThirdByteNodeIdx = this.decodeTables.length
+    this.decodeTables.push(UNASSIGNED_NODE.slice(0))
+
+    var commonFourthByteNodeIdx = this.decodeTables.length
+    this.decodeTables.push(UNASSIGNED_NODE.slice(0))
+
+    // Fill out the tree
+    var firstByteNode = this.decodeTables[0]
+    for (var i = 0x81; i <= 0xFE; i++) {
+      var secondByteNode = this.decodeTables[NODE_START - firstByteNode[i]]
+      for (var j = 0x30; j <= 0x39; j++) {
+        if (secondByteNode[j] === UNASSIGNED) {
+          secondByteNode[j] = NODE_START - commonThirdByteNodeIdx
+        } else if (secondByteNode[j] > NODE_START) {
+          throw new Error("gb18030 decode tables conflict at byte 2")
+        }
+
+        var thirdByteNode = this.decodeTables[NODE_START - secondByteNode[j]]
+        for (var k = 0x81; k <= 0xFE; k++) {
+          if (thirdByteNode[k] === UNASSIGNED) {
+            thirdByteNode[k] = NODE_START - commonFourthByteNodeIdx
+          } else if (thirdByteNode[k] === NODE_START - commonFourthByteNodeIdx) {
+            continue
+          } else if (thirdByteNode[k] > NODE_START) {
+            throw new Error("gb18030 decode tables conflict at byte 3")
+          }
+
+          var fourthByteNode = this.decodeTables[NODE_START - thirdByteNode[k]]
+          for (var l = 0x30; l <= 0x39; l++) {
+            if (fourthByteNode[l] === UNASSIGNED) { fourthByteNode[l] = GB18030_CODE }
+          }
+        }
+      }
+    }
+  }
+
+  this.defaultCharUnicode = iconv.defaultCharUnicode
+
+  // Encode tables: Unicode -> DBCS.
+
+  // `encodeTable` is array mapping from unicode char to encoded char. All its values are integers for performance.
+  // Because it can be sparse, it is represented as array of buckets by 256 chars each. Bucket can be null.
+  // Values: >=  0 -> it is a normal char. Write the value (if <=256 then 1 byte, if <=65536 then 2 bytes, etc.).
+  //         == UNASSIGNED -> no conversion found. Output a default char.
+  //         <= SEQ_START  -> it's an index in encodeTableSeq, see below. The character starts a sequence.
+  this.encodeTable = []
+
+  // `encodeTableSeq` is used when a sequence of unicode characters is encoded as a single code. We use a tree of
+  // objects where keys correspond to characters in sequence and leafs are the encoded dbcs values. A special DEF_CHAR key
+  // means end of sequence (needed when one sequence is a strict subsequence of another).
+  // Objects are kept separately from encodeTable to increase performance.
+  this.encodeTableSeq = []
+
+  // Some chars can be decoded, but need not be encoded.
+  var skipEncodeChars = {}
+  if (codecOptions.encodeSkipVals) {
+    for (var i = 0; i < codecOptions.encodeSkipVals.length; i++) {
+      var val = codecOptions.encodeSkipVals[i]
+      if (typeof val === "number") { skipEncodeChars[val] = true } else {
+        for (var j = val.from; j <= val.to; j++) { skipEncodeChars[j] = true }
+      }
+    }
+  }
+
+  // Use decode trie to recursively fill out encode tables.
+  this._fillEncodeTable(0, 0, skipEncodeChars)
+
+  // Add more encoding pairs when needed.
+  if (codecOptions.encodeAdd) {
+    for (var uChar in codecOptions.encodeAdd) {
+      if (Object.prototype.hasOwnProperty.call(codecOptions.encodeAdd, uChar)) { this._setEncodeChar(uChar.charCodeAt(0), codecOptions.encodeAdd[uChar]) }
+    }
+  }
+
+  this.defCharSB = this.encodeTable[0][iconv.defaultCharSingleByte.charCodeAt(0)]
+  if (this.defCharSB === UNASSIGNED) this.defCharSB = this.encodeTable[0]["?"]
+  if (this.defCharSB === UNASSIGNED) this.defCharSB = "?".charCodeAt(0)
+}
+
+DBCSCodec.prototype.encoder = DBCSEncoder
+DBCSCodec.prototype.decoder = DBCSDecoder
+
+// Decoder helpers
+DBCSCodec.prototype._getDecodeTrieNode = function (addr) {
+  var bytes = []
+  for (; addr > 0; addr >>>= 8) { bytes.push(addr & 0xFF) }
+  if (bytes.length == 0) { bytes.push(0) }
+
+  var node = this.decodeTables[0]
+  for (var i = bytes.length - 1; i > 0; i--) { // Traverse nodes deeper into the trie.
+    var val = node[bytes[i]]
+
+    if (val == UNASSIGNED) { // Create new node.
+      node[bytes[i]] = NODE_START - this.decodeTables.length
+      this.decodeTables.push(node = UNASSIGNED_NODE.slice(0))
+    } else if (val <= NODE_START) { // Existing node.
+      node = this.decodeTables[NODE_START - val]
+    } else { throw new Error("Overwrite byte in " + this.encodingName + ", addr: " + addr.toString(16)) }
+  }
+  return node
+}
+
+DBCSCodec.prototype._addDecodeChunk = function (chunk) {
+  // First element of chunk is the hex mbcs code where we start.
+  var curAddr = parseInt(chunk[0], 16)
+
+  // Choose the decoding node where we'll write our chars.
+  var writeTable = this._getDecodeTrieNode(curAddr)
+  curAddr = curAddr & 0xFF
+
+  // Write all other elements of the chunk to the table.
+  for (var k = 1; k < chunk.length; k++) {
+    var part = chunk[k]
+    if (typeof part === "string") { // String, write as-is.
+      for (var l = 0; l < part.length;) {
+        var code = part.charCodeAt(l++)
+        if (code >= 0xD800 && code < 0xDC00) { // Decode surrogate
+          var codeTrail = part.charCodeAt(l++)
+          if (codeTrail >= 0xDC00 && codeTrail < 0xE000) { writeTable[curAddr++] = 0x10000 + (code - 0xD800) * 0x400 + (codeTrail - 0xDC00) } else { throw new Error("Incorrect surrogate pair in " + this.encodingName + " at chunk " + chunk[0]) }
+        } else if (code > 0x0FF0 && code <= 0x0FFF) { // Character sequence (our own encoding used)
+          var len = 0xFFF - code + 2
+          var seq = []
+          for (var m = 0; m < len; m++) { seq.push(part.charCodeAt(l++)) } // Simple variation: don't support surrogates or subsequences in seq.
+
+          writeTable[curAddr++] = SEQ_START - this.decodeTableSeq.length
+          this.decodeTableSeq.push(seq)
+        } else { writeTable[curAddr++] = code } // Basic char
+      }
+    } else if (typeof part === "number") { // Integer, meaning increasing sequence starting with prev character.
+      var charCode = writeTable[curAddr - 1] + 1
+      for (var l = 0; l < part; l++) { writeTable[curAddr++] = charCode++ }
+    } else { throw new Error("Incorrect type '" + typeof part + "' given in " + this.encodingName + " at chunk " + chunk[0]) }
+  }
+  if (curAddr > 0xFF) { throw new Error("Incorrect chunk in " + this.encodingName + " at addr " + chunk[0] + ": too long" + curAddr) }
+}
+
+// Encoder helpers
+DBCSCodec.prototype._getEncodeBucket = function (uCode) {
+  var high = uCode >> 8 // This could be > 0xFF because of astral characters.
+  if (this.encodeTable[high] === undefined) {
+    this.encodeTable[high] = UNASSIGNED_NODE.slice(0)
+  } // Create bucket on demand.
+  return this.encodeTable[high]
+}
+
+DBCSCodec.prototype._setEncodeChar = function (uCode, dbcsCode) {
+  var bucket = this._getEncodeBucket(uCode)
+  var low = uCode & 0xFF
+  if (bucket[low] <= SEQ_START) { this.encodeTableSeq[SEQ_START - bucket[low]][DEF_CHAR] = dbcsCode } // There's already a sequence, set a single-char subsequence of it.
+  else if (bucket[low] == UNASSIGNED) { bucket[low] = dbcsCode }
+}
+
+DBCSCodec.prototype._setEncodeSequence = function (seq, dbcsCode) {
+  // Get the root of character tree according to first character of the sequence.
+  var uCode = seq[0]
+  var bucket = this._getEncodeBucket(uCode)
+  var low = uCode & 0xFF
+
+  var node
+  if (bucket[low] <= SEQ_START) {
+    // There's already a sequence with  - use it.
+    node = this.encodeTableSeq[SEQ_START - bucket[low]]
+  } else {
+    // There was no sequence object - allocate a new one.
+    node = {}
+    if (bucket[low] !== UNASSIGNED) node[DEF_CHAR] = bucket[low] // If a char was set before - make it a single-char subsequence.
+    bucket[low] = SEQ_START - this.encodeTableSeq.length
+    this.encodeTableSeq.push(node)
+  }
+
+  // Traverse the character tree, allocating new nodes as needed.
+  for (var j = 1; j < seq.length - 1; j++) {
+    var oldVal = node[uCode]
+    if (typeof oldVal === "object") { node = oldVal } else {
+      node = node[uCode] = {}
+      if (oldVal !== undefined) { node[DEF_CHAR] = oldVal }
+    }
+  }
+
+  // Set the leaf to given dbcsCode.
+  uCode = seq[seq.length - 1]
+  node[uCode] = dbcsCode
+}
+
+DBCSCodec.prototype._fillEncodeTable = function (nodeIdx, prefix, skipEncodeChars) {
+  var node = this.decodeTables[nodeIdx]
+  var hasValues = false
+  var subNodeEmpty = {}
+  for (var i = 0; i < 0x100; i++) {
+    var uCode = node[i]
+    var mbCode = prefix + i
+    if (skipEncodeChars[mbCode]) { continue }
+
+    if (uCode >= 0) {
+      this._setEncodeChar(uCode, mbCode)
+      hasValues = true
+    } else if (uCode <= NODE_START) {
+      var subNodeIdx = NODE_START - uCode
+      if (!subNodeEmpty[subNodeIdx]) {  // Skip empty subtrees (they are too large in gb18030).
+        var newPrefix = (mbCode << 8) >>> 0  // NOTE: '>>> 0' keeps 32-bit num positive.
+        if (this._fillEncodeTable(subNodeIdx, newPrefix, skipEncodeChars)) { hasValues = true } else { subNodeEmpty[subNodeIdx] = true }
+      }
+    } else if (uCode <= SEQ_START) {
+      this._setEncodeSequence(this.decodeTableSeq[SEQ_START - uCode], mbCode)
+      hasValues = true
+    }
+  }
+  return hasValues
+}
+
+// == Encoder ==================================================================
+
+function DBCSEncoder (options, codec) {
+  // Encoder state
+  this.leadSurrogate = -1
+  this.seqObj = undefined
+
+  // Static data
+  this.encodeTable = codec.encodeTable
+  this.encodeTableSeq = codec.encodeTableSeq
+  this.defaultCharSingleByte = codec.defCharSB
+  this.gb18030 = codec.gb18030
+}
+
+DBCSEncoder.prototype.write = function (str) {
+  var newBuf = Buffer.alloc(str.length * (this.gb18030 ? 4 : 3))
+  var leadSurrogate = this.leadSurrogate
+  var seqObj = this.seqObj
+  var nextChar = -1
+  var i = 0; var j = 0
+
+  while (true) {
+    // 0. Get next character.
+    if (nextChar === -1) {
+      if (i == str.length) break
+      var uCode = str.charCodeAt(i++)
+    } else {
+      var uCode = nextChar
+      nextChar = -1
+    }
+
+    // 1. Handle surrogates.
+    if (uCode >= 0xD800 && uCode < 0xE000) { // Char is one of surrogates.
+      if (uCode < 0xDC00) { // We've got lead surrogate.
+        if (leadSurrogate === -1) {
+          leadSurrogate = uCode
+          continue
+        } else {
+          leadSurrogate = uCode
+          // Double lead surrogate found.
+          uCode = UNASSIGNED
+        }
+      } else { // We've got trail surrogate.
+        if (leadSurrogate !== -1) {
+          uCode = 0x10000 + (leadSurrogate - 0xD800) * 0x400 + (uCode - 0xDC00)
+          leadSurrogate = -1
+        } else {
+          // Incomplete surrogate pair - only trail surrogate found.
+          uCode = UNASSIGNED
+        }
+      }
+    } else if (leadSurrogate !== -1) {
+      // Incomplete surrogate pair - only lead surrogate found.
+      nextChar = uCode; uCode = UNASSIGNED // Write an error, then current char.
+      leadSurrogate = -1
+    }
+
+    // 2. Convert uCode character.
+    var dbcsCode = UNASSIGNED
+    if (seqObj !== undefined && uCode != UNASSIGNED) { // We are in the middle of the sequence
+      var resCode = seqObj[uCode]
+      if (typeof resCode === "object") { // Sequence continues.
+        seqObj = resCode
+        continue
+      } else if (typeof resCode === "number") { // Sequence finished. Write it.
+        dbcsCode = resCode
+      } else if (resCode == undefined) { // Current character is not part of the sequence.
+        // Try default character for this sequence
+        resCode = seqObj[DEF_CHAR]
+        if (resCode !== undefined) {
+          dbcsCode = resCode // Found. Write it.
+          nextChar = uCode // Current character will be written too in the next iteration.
+        } else {
+          // TODO: What if we have no default? (resCode == undefined)
+          // Then, we should write first char of the sequence as-is and try the rest recursively.
+          // Didn't do it for now because no encoding has this situation yet.
+          // Currently, just skip the sequence and write current char.
+        }
+      }
+      seqObj = undefined
+    } else if (uCode >= 0) {  // Regular character
+      var subtable = this.encodeTable[uCode >> 8]
+      if (subtable !== undefined) { dbcsCode = subtable[uCode & 0xFF] }
+
+      if (dbcsCode <= SEQ_START) { // Sequence start
+        seqObj = this.encodeTableSeq[SEQ_START - dbcsCode]
+        continue
+      }
+
+      if (dbcsCode == UNASSIGNED && this.gb18030) {
+        // Use GB18030 algorithm to find character(s) to write.
+        var idx = findIdx(this.gb18030.uChars, uCode)
+        if (idx != -1) {
+          var dbcsCode = this.gb18030.gbChars[idx] + (uCode - this.gb18030.uChars[idx])
+          newBuf[j++] = 0x81 + Math.floor(dbcsCode / 12600); dbcsCode = dbcsCode % 12600
+          newBuf[j++] = 0x30 + Math.floor(dbcsCode / 1260); dbcsCode = dbcsCode % 1260
+          newBuf[j++] = 0x81 + Math.floor(dbcsCode / 10); dbcsCode = dbcsCode % 10
+          newBuf[j++] = 0x30 + dbcsCode
+          continue
+        }
+      }
+    }
+
+    // 3. Write dbcsCode character.
+    if (dbcsCode === UNASSIGNED) { dbcsCode = this.defaultCharSingleByte }
+
+    if (dbcsCode < 0x100) {
+      newBuf[j++] = dbcsCode
+    } else if (dbcsCode < 0x10000) {
+      newBuf[j++] = dbcsCode >> 8   // high byte
+      newBuf[j++] = dbcsCode & 0xFF // low byte
+    } else if (dbcsCode < 0x1000000) {
+      newBuf[j++] = dbcsCode >> 16
+      newBuf[j++] = (dbcsCode >> 8) & 0xFF
+      newBuf[j++] = dbcsCode & 0xFF
+    } else {
+      newBuf[j++] = dbcsCode >>> 24
+      newBuf[j++] = (dbcsCode >>> 16) & 0xFF
+      newBuf[j++] = (dbcsCode >>> 8) & 0xFF
+      newBuf[j++] = dbcsCode & 0xFF
+    }
+  }
+
+  this.seqObj = seqObj
+  this.leadSurrogate = leadSurrogate
+  return newBuf.slice(0, j)
+}
+
+DBCSEncoder.prototype.end = function () {
+  if (this.leadSurrogate === -1 && this.seqObj === undefined) { return } // All clean. Most often case.
+
+  var newBuf = Buffer.alloc(10); var j = 0
+
+  if (this.seqObj) { // We're in the sequence.
+    var dbcsCode = this.seqObj[DEF_CHAR]
+    if (dbcsCode !== undefined) { // Write beginning of the sequence.
+      if (dbcsCode < 0x100) {
+        newBuf[j++] = dbcsCode
+      } else {
+        newBuf[j++] = dbcsCode >> 8   // high byte
+        newBuf[j++] = dbcsCode & 0xFF // low byte
+      }
+    } else {
+      // See todo above.
+    }
+    this.seqObj = undefined
+  }
+
+  if (this.leadSurrogate !== -1) {
+    // Incomplete surrogate pair - only lead surrogate found.
+    newBuf[j++] = this.defaultCharSingleByte
+    this.leadSurrogate = -1
+  }
+
+  return newBuf.slice(0, j)
+}
+
+// Export for testing
+DBCSEncoder.prototype.findIdx = findIdx
+
+// == Decoder ==================================================================
+
+function DBCSDecoder (options, codec) {
+  // Decoder state
+  this.nodeIdx = 0
+  this.prevBytes = []
+
+  // Static data
+  this.decodeTables = codec.decodeTables
+  this.decodeTableSeq = codec.decodeTableSeq
+  this.defaultCharUnicode = codec.defaultCharUnicode
+  this.gb18030 = codec.gb18030
+}
+
+DBCSDecoder.prototype.write = function (buf) {
+  var newBuf = Buffer.alloc(buf.length * 2)
+  var nodeIdx = this.nodeIdx
+  var prevBytes = this.prevBytes; var prevOffset = this.prevBytes.length
+  var seqStart = -this.prevBytes.length // idx of the start of current parsed sequence.
+  var uCode
+
+  for (var i = 0, j = 0; i < buf.length; i++) {
+    var curByte = (i >= 0) ? buf[i] : prevBytes[i + prevOffset]
+
+    // Lookup in current trie node.
+    var uCode = this.decodeTables[nodeIdx][curByte]
+
+    if (uCode >= 0) {
+      // Normal character, just use it.
+    } else if (uCode === UNASSIGNED) { // Unknown char.
+      // TODO: Callback with seq.
+      uCode = this.defaultCharUnicode.charCodeAt(0)
+      i = seqStart // Skip one byte ('i' will be incremented by the for loop) and try to parse again.
+    } else if (uCode === GB18030_CODE) {
+      if (i >= 3) {
+        var ptr = (buf[i - 3] - 0x81) * 12600 + (buf[i - 2] - 0x30) * 1260 + (buf[i - 1] - 0x81) * 10 + (curByte - 0x30)
+      } else {
+        var ptr = (prevBytes[i - 3 + prevOffset] - 0x81) * 12600 +
+                          (((i - 2 >= 0) ? buf[i - 2] : prevBytes[i - 2 + prevOffset]) - 0x30) * 1260 +
+                          (((i - 1 >= 0) ? buf[i - 1] : prevBytes[i - 1 + prevOffset]) - 0x81) * 10 +
+                          (curByte - 0x30)
+      }
+      var idx = findIdx(this.gb18030.gbChars, ptr)
+      uCode = this.gb18030.uChars[idx] + ptr - this.gb18030.gbChars[idx]
+    } else if (uCode <= NODE_START) { // Go to next trie node.
+      nodeIdx = NODE_START - uCode
+      continue
+    } else if (uCode <= SEQ_START) { // Output a sequence of chars.
+      var seq = this.decodeTableSeq[SEQ_START - uCode]
+      for (var k = 0; k < seq.length - 1; k++) {
+        uCode = seq[k]
+        newBuf[j++] = uCode & 0xFF
+        newBuf[j++] = uCode >> 8
+      }
+      uCode = seq[seq.length - 1]
+    } else { throw new Error("iconv-lite internal error: invalid decoding table value " + uCode + " at " + nodeIdx + "/" + curByte) }
+
+    // Write the character to buffer, handling higher planes using surrogate pair.
+    if (uCode >= 0x10000) {
+      uCode -= 0x10000
+      var uCodeLead = 0xD800 | (uCode >> 10)
+      newBuf[j++] = uCodeLead & 0xFF
+      newBuf[j++] = uCodeLead >> 8
+
+      uCode = 0xDC00 | (uCode & 0x3FF)
+    }
+    newBuf[j++] = uCode & 0xFF
+    newBuf[j++] = uCode >> 8
+
+    // Reset trie node.
+    nodeIdx = 0; seqStart = i + 1
+  }
+
+  this.nodeIdx = nodeIdx
+  this.prevBytes = (seqStart >= 0)
+    ? Array.prototype.slice.call(buf, seqStart)
+    : prevBytes.slice(seqStart + prevOffset).concat(Array.prototype.slice.call(buf))
+
+  return newBuf.slice(0, j).toString("ucs2")
+}
+
+DBCSDecoder.prototype.end = function () {
+  var ret = ""
+
+  // Try to parse all remaining chars.
+  while (this.prevBytes.length > 0) {
+    // Skip 1 character in the buffer.
+    ret += this.defaultCharUnicode
+    var bytesArr = this.prevBytes.slice(1)
+
+    // Parse remaining as usual.
+    this.prevBytes = []
+    this.nodeIdx = 0
+    if (bytesArr.length > 0) { ret += this.write(bytesArr) }
+  }
+
+  this.prevBytes = []
+  this.nodeIdx = 0
+  return ret
+}
+
+// Binary search for GB18030. Returns largest i such that table[i] <= val.
+function findIdx (table, val) {
+  if (table[0] > val) { return -1 }
+
+  var l = 0; var r = table.length
+  while (l < r - 1) { // always table[l] <= val < table[r]
+    var mid = l + ((r - l + 1) >> 1)
+    if (table[mid] <= val) { l = mid } else { r = mid }
+  }
+  return l
+}