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diff --git a/node_modules/iconv-lite/encodings/utf7.js b/node_modules/iconv-lite/encodings/utf7.js
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+"use strict"
+var Buffer = require("safer-buffer").Buffer
+
+// UTF-7 codec, according to https://tools.ietf.org/html/rfc2152
+// See also below a UTF-7-IMAP codec, according to http://tools.ietf.org/html/rfc3501#section-5.1.3
+
+exports.utf7 = Utf7Codec
+exports.unicode11utf7 = "utf7" // Alias UNICODE-1-1-UTF-7
+function Utf7Codec (codecOptions, iconv) {
+  this.iconv = iconv
+};
+
+Utf7Codec.prototype.encoder = Utf7Encoder
+Utf7Codec.prototype.decoder = Utf7Decoder
+Utf7Codec.prototype.bomAware = true
+
+// -- Encoding
+
+// Why scape ()?./?
+// eslint-disable-next-line no-useless-escape
+var nonDirectChars = /[^A-Za-z0-9'\(\),-\.\/:\? \n\r\t]+/g
+
+function Utf7Encoder (options, codec) {
+  this.iconv = codec.iconv
+}
+
+Utf7Encoder.prototype.write = function (str) {
+  // Naive implementation.
+  // Non-direct chars are encoded as "+<base64>-"; single "+" char is encoded as "+-".
+  return Buffer.from(str.replace(nonDirectChars, function (chunk) {
+    return "+" + (chunk === "+"
+      ? ""
+      : this.iconv.encode(chunk, "utf16-be").toString("base64").replace(/=+$/, "")) +
+            "-"
+  }.bind(this)))
+}
+
+Utf7Encoder.prototype.end = function () {
+}
+
+// -- Decoding
+
+function Utf7Decoder (options, codec) {
+  this.iconv = codec.iconv
+  this.inBase64 = false
+  this.base64Accum = ""
+}
+
+// Why scape /?
+// eslint-disable-next-line no-useless-escape
+var base64Regex = /[A-Za-z0-9\/+]/
+var base64Chars = []
+for (var i = 0; i < 256; i++) { base64Chars[i] = base64Regex.test(String.fromCharCode(i)) }
+
+var plusChar = "+".charCodeAt(0)
+var minusChar = "-".charCodeAt(0)
+var andChar = "&".charCodeAt(0)
+
+Utf7Decoder.prototype.write = function (buf) {
+  var res = ""; var lastI = 0
+  var inBase64 = this.inBase64
+  var base64Accum = this.base64Accum
+
+  // The decoder is more involved as we must handle chunks in stream.
+
+  for (var i = 0; i < buf.length; i++) {
+    if (!inBase64) { // We're in direct mode.
+      // Write direct chars until '+'
+      if (buf[i] == plusChar) {
+        res += this.iconv.decode(buf.slice(lastI, i), "ascii") // Write direct chars.
+        lastI = i + 1
+        inBase64 = true
+      }
+    } else { // We decode base64.
+      if (!base64Chars[buf[i]]) { // Base64 ended.
+        if (i == lastI && buf[i] == minusChar) { // "+-" -> "+"
+          res += "+"
+        } else {
+          var b64str = base64Accum + this.iconv.decode(buf.slice(lastI, i), "ascii")
+          res += this.iconv.decode(Buffer.from(b64str, "base64"), "utf16-be")
+        }
+
+        if (buf[i] != minusChar) // Minus is absorbed after base64.
+        { i-- }
+
+        lastI = i + 1
+        inBase64 = false
+        base64Accum = ""
+      }
+    }
+  }
+
+  if (!inBase64) {
+    res += this.iconv.decode(buf.slice(lastI), "ascii") // Write direct chars.
+  } else {
+    var b64str = base64Accum + this.iconv.decode(buf.slice(lastI), "ascii")
+
+    var canBeDecoded = b64str.length - (b64str.length % 8) // Minimal chunk: 2 quads -> 2x3 bytes -> 3 chars.
+    base64Accum = b64str.slice(canBeDecoded) // The rest will be decoded in future.
+    b64str = b64str.slice(0, canBeDecoded)
+
+    res += this.iconv.decode(Buffer.from(b64str, "base64"), "utf16-be")
+  }
+
+  this.inBase64 = inBase64
+  this.base64Accum = base64Accum
+
+  return res
+}
+
+Utf7Decoder.prototype.end = function () {
+  var res = ""
+  if (this.inBase64 && this.base64Accum.length > 0) { res = this.iconv.decode(Buffer.from(this.base64Accum, "base64"), "utf16-be") }
+
+  this.inBase64 = false
+  this.base64Accum = ""
+  return res
+}
+
+// UTF-7-IMAP codec.
+// RFC3501 Sec. 5.1.3 Modified UTF-7 (http://tools.ietf.org/html/rfc3501#section-5.1.3)
+// Differences:
+//  * Base64 part is started by "&" instead of "+"
+//  * Direct characters are 0x20-0x7E, except "&" (0x26)
+//  * In Base64, "," is used instead of "/"
+//  * Base64 must not be used to represent direct characters.
+//  * No implicit shift back from Base64 (should always end with '-')
+//  * String must end in non-shifted position.
+//  * "-&" while in base64 is not allowed.
+
+exports.utf7imap = Utf7IMAPCodec
+function Utf7IMAPCodec (codecOptions, iconv) {
+  this.iconv = iconv
+};
+
+Utf7IMAPCodec.prototype.encoder = Utf7IMAPEncoder
+Utf7IMAPCodec.prototype.decoder = Utf7IMAPDecoder
+Utf7IMAPCodec.prototype.bomAware = true
+
+// -- Encoding
+
+function Utf7IMAPEncoder (options, codec) {
+  this.iconv = codec.iconv
+  this.inBase64 = false
+  this.base64Accum = Buffer.alloc(6)
+  this.base64AccumIdx = 0
+}
+
+Utf7IMAPEncoder.prototype.write = function (str) {
+  var inBase64 = this.inBase64
+  var base64Accum = this.base64Accum
+  var base64AccumIdx = this.base64AccumIdx
+  var buf = Buffer.alloc(str.length * 5 + 10); var bufIdx = 0
+
+  for (var i = 0; i < str.length; i++) {
+    var uChar = str.charCodeAt(i)
+    if (uChar >= 0x20 && uChar <= 0x7E) { // Direct character or '&'.
+      if (inBase64) {
+        if (base64AccumIdx > 0) {
+          bufIdx += buf.write(base64Accum.slice(0, base64AccumIdx).toString("base64").replace(/\//g, ",").replace(/=+$/, ""), bufIdx)
+          base64AccumIdx = 0
+        }
+
+        buf[bufIdx++] = minusChar // Write '-', then go to direct mode.
+        inBase64 = false
+      }
+
+      if (!inBase64) {
+        buf[bufIdx++] = uChar // Write direct character
+
+        if (uChar === andChar)  // Ampersand -> '&-'
+        { buf[bufIdx++] = minusChar }
+      }
+    } else { // Non-direct character
+      if (!inBase64) {
+        buf[bufIdx++] = andChar // Write '&', then go to base64 mode.
+        inBase64 = true
+      }
+      if (inBase64) {
+        base64Accum[base64AccumIdx++] = uChar >> 8
+        base64Accum[base64AccumIdx++] = uChar & 0xFF
+
+        if (base64AccumIdx == base64Accum.length) {
+          bufIdx += buf.write(base64Accum.toString("base64").replace(/\//g, ","), bufIdx)
+          base64AccumIdx = 0
+        }
+      }
+    }
+  }
+
+  this.inBase64 = inBase64
+  this.base64AccumIdx = base64AccumIdx
+
+  return buf.slice(0, bufIdx)
+}
+
+Utf7IMAPEncoder.prototype.end = function () {
+  var buf = Buffer.alloc(10); var bufIdx = 0
+  if (this.inBase64) {
+    if (this.base64AccumIdx > 0) {
+      bufIdx += buf.write(this.base64Accum.slice(0, this.base64AccumIdx).toString("base64").replace(/\//g, ",").replace(/=+$/, ""), bufIdx)
+      this.base64AccumIdx = 0
+    }
+
+    buf[bufIdx++] = minusChar // Write '-', then go to direct mode.
+    this.inBase64 = false
+  }
+
+  return buf.slice(0, bufIdx)
+}
+
+// -- Decoding
+
+function Utf7IMAPDecoder (options, codec) {
+  this.iconv = codec.iconv
+  this.inBase64 = false
+  this.base64Accum = ""
+}
+
+var base64IMAPChars = base64Chars.slice()
+base64IMAPChars[",".charCodeAt(0)] = true
+
+Utf7IMAPDecoder.prototype.write = function (buf) {
+  var res = ""; var lastI = 0
+  var inBase64 = this.inBase64
+  var base64Accum = this.base64Accum
+
+  // The decoder is more involved as we must handle chunks in stream.
+  // It is forgiving, closer to standard UTF-7 (for example, '-' is optional at the end).
+
+  for (var i = 0; i < buf.length; i++) {
+    if (!inBase64) { // We're in direct mode.
+      // Write direct chars until '&'
+      if (buf[i] == andChar) {
+        res += this.iconv.decode(buf.slice(lastI, i), "ascii") // Write direct chars.
+        lastI = i + 1
+        inBase64 = true
+      }
+    } else { // We decode base64.
+      if (!base64IMAPChars[buf[i]]) { // Base64 ended.
+        if (i == lastI && buf[i] == minusChar) { // "&-" -> "&"
+          res += "&"
+        } else {
+          var b64str = base64Accum + this.iconv.decode(buf.slice(lastI, i), "ascii").replace(/,/g, "/")
+          res += this.iconv.decode(Buffer.from(b64str, "base64"), "utf16-be")
+        }
+
+        if (buf[i] != minusChar) // Minus may be absorbed after base64.
+        { i-- }
+
+        lastI = i + 1
+        inBase64 = false
+        base64Accum = ""
+      }
+    }
+  }
+
+  if (!inBase64) {
+    res += this.iconv.decode(buf.slice(lastI), "ascii") // Write direct chars.
+  } else {
+    var b64str = base64Accum + this.iconv.decode(buf.slice(lastI), "ascii").replace(/,/g, "/")
+
+    var canBeDecoded = b64str.length - (b64str.length % 8) // Minimal chunk: 2 quads -> 2x3 bytes -> 3 chars.
+    base64Accum = b64str.slice(canBeDecoded) // The rest will be decoded in future.
+    b64str = b64str.slice(0, canBeDecoded)
+
+    res += this.iconv.decode(Buffer.from(b64str, "base64"), "utf16-be")
+  }
+
+  this.inBase64 = inBase64
+  this.base64Accum = base64Accum
+
+  return res
+}
+
+Utf7IMAPDecoder.prototype.end = function () {
+  var res = ""
+  if (this.inBase64 && this.base64Accum.length > 0) { res = this.iconv.decode(Buffer.from(this.base64Accum, "base64"), "utf16-be") }
+
+  this.inBase64 = false
+  this.base64Accum = ""
+  return res
+}