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/*! http://mths.be/he v0.4.1 by @mathias | MIT license */
;(function(root) {

	// Detect free variables `exports`.
	var freeExports = typeof exports == 'object' && exports;

	// Detect free variable `module`.
	var freeModule = typeof module == 'object' && module &&
		module.exports == freeExports && module;

	// Detect free variable `global`, from Node.js or Browserified code,
	// and use it as `root`.
	var freeGlobal = typeof global == 'object' && global;
	if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
		root = freeGlobal;
	}

	/*--------------------------------------------------------------------------*/

	// All astral symbols.
	var regexAstralSymbols = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
	// All ASCII symbols (not just printable ASCII) except those listed in the
	// first column of the overrides table.
	// http://whatwg.org/html/tokenization.html#table-charref-overrides
	var regexAsciiWhitelist = /[\x01-\x7F]/g;
	// All BMP symbols that are not ASCII newlines, printable ASCII symbols, or
	// code points listed in the first column of the overrides table on
	// http://whatwg.org/html/tokenization.html#table-charref-overrides.
	var regexBmpWhitelist = /[\x01-\t\x0B\f\x0E-\x1F\x7F\x81\x8D\x8F\x90\x9D\xA0-\uFFFF]/g;

	var regexEncodeNonAscii = /<\u20D2|=\u20E5|>\u20D2|\u205F\u200A|\u219D\u0338|\u2202\u0338|\u2220\u20D2|\u2229\uFE00|\u222A\uFE00|\u223C\u20D2|\u223D\u0331|\u223E\u0333|\u2242\u0338|\u224B\u0338|\u224D\u20D2|\u224E\u0338|\u224F\u0338|\u2250\u0338|\u2...
	var encodeMap = {'\xC1':'Aacute','\xE1':'aacute','\u0102':'Abreve','\u0103':'abreve','\u223E':'ac','\u223F':'acd','\u223E\u0333':'acE','\xC2':'Acirc','\xE2':'acirc','\xB4':'acute','\u0410':'Acy','\u0430':'acy','\xC6':'AElig','\xE6':'aelig','\u2061':...

	var regexEscape = /["&'<>`]/g;
	var escapeMap = {
		'"': '&quot;',
		'&': '&amp;',
		'\'': '&#x27;',
		'<': '&lt;',
		// See http://mathiasbynens.be/notes/ambiguous-ampersands: in HTML, the
		// following is not strictly necessary unless it’s part of a tag or an
		// unquoted attribute value. We’re only escaping it to support those
		// situations, and for XML support.
		'>': '&gt;',
		// In Internet Explorer ≤ 8, the backtick character can be used
		// to break out of (un)quoted attribute values or HTML comments.
		// See http://html5sec.org/#102, http://html5sec.org/#108, and
		// http://html5sec.org/#133.
		'`': '&#x60;'
	};

	var regexInvalidEntity = /&#(?:[xX][^a-fA-F0-9]|[^0-9xX])/;
	var regexInvalidRawCodePoint = /[\0-\x08\x0B\x0E-\x1F\x7F-\x9F\uFDD0-\uFDEF\uFFFE\uFFFF]|[\uD83F\uD87F\uD8BF\uD8FF\uD93F\uD97F\uD9BF\uD9FF\uDA3F\uDA7F\uDABF\uDAFF\uDB3F\uDB7F\uDBBF\uDBFF][\uDFFE\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-...
	var regexDecode = /&#([0-9]+)(;?)|&#[xX]([a-fA-F0-9]+)(;?)|&([0-9a-zA-Z]+);|&(Aacute|iacute|Uacute|plusmn|otilde|Otilde|Agrave|agrave|yacute|Yacute|oslash|Oslash|Atilde|atilde|brvbar|Ccedil|ccedil|ograve|curren|divide|Eacute|eacute|Ograve|oacute|Egr...
	var decodeMap = {'Aacute':'\xC1','aacute':'\xE1','Abreve':'\u0102','abreve':'\u0103','ac':'\u223E','acd':'\u223F','acE':'\u223E\u0333','Acirc':'\xC2','acirc':'\xE2','acute':'\xB4','Acy':'\u0410','acy':'\u0430','AElig':'\xC6','aelig':'\xE6','af':'\u2...
	var decodeMapLegacy = {'Aacute':'\xC1','aacute':'\xE1','Acirc':'\xC2','acirc':'\xE2','acute':'\xB4','AElig':'\xC6','aelig':'\xE6','Agrave':'\xC0','agrave':'\xE0','amp':'&','AMP':'&','Aring':'\xC5','aring':'\xE5','Atilde':'\xC3','atilde':'\xE3','Auml...
	var decodeMapNumeric = {'0':'\uFFFD','128':'\u20AC','130':'\u201A','131':'\u0192','132':'\u201E','133':'\u2026','134':'\u2020','135':'\u2021','136':'\u02C6','137':'\u2030','138':'\u0160','139':'\u2039','140':'\u0152','142':'\u017D','145':'\u2018','1...
	var invalidReferenceCodePoints = [1,2,3,4,5,6,7,8,11,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,64976,6...

	/*--------------------------------------------------------------------------*/

	var stringFromCharCode = String.fromCharCode;

	var object = {};
	var hasOwnProperty = object.hasOwnProperty;
	var has = function(object, propertyName) {
		return hasOwnProperty.call(object, propertyName);
	};

	var contains = function(array, value) {
		var index = -1;
		var length = array.length;
		while (++index < length) {
			if (array[index] == value) {
				return true;
			}
		}
		return false;
	};

	var merge = function(options, defaults) {
		if (!options) {
			return defaults;
		}
		var result = {};
		var key;
		for (key in defaults) {
			// A `hasOwnProperty` check is not needed here, since only recognized
			// option names are used anyway. Any others are ignored.
			result[key] = has(options, key) ? options[key] : defaults[key];
		}
		return result;
	};

	// Modified version of `ucs2encode`; see http://mths.be/punycode.
	var codePointToSymbol = function(codePoint, strict) {
		var output = '';
		if ((codePoint >= 0xD800 && codePoint <= 0xDFFF) || codePoint > 0x10FFFF) {
			// See issue #4:
			// “Otherwise, if the number is in the range 0xD800 to 0xDFFF or is
			// greater than 0x10FFFF, then this is a parse error. Return a U+FFFD
			// REPLACEMENT CHARACTER.”
			if (strict) {
				parseError('character reference outside the permissible Unicode range');
			}
			return '\uFFFD';
		}
		if (has(decodeMapNumeric, codePoint)) {
			if (strict) {
				parseError('disallowed character reference');
			}
			return decodeMapNumeric[codePoint];
		}
		if (strict && contains(invalidReferenceCodePoints, codePoint)) {
			parseError('disallowed character reference');