Parser: Add huge number parser. See #1161

dist/js/parsers/parser-huge-numbers.min.js

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+/*! Parser: hugeNumbers - updated 2/23/2016 (v2.25.5) */
+!function(a){"use strict";a.tablesorter.addParser({id:"hugeNumbers",is:function(){return!1},format:function(a){return a.replace(/\B(?=(\d{12})+(?!\d))/g,",")},type:"text"})}(jQuery);

js/parsers/parser-huge-numbers.js

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+/*! Parser: hugeNumbers - updated 2/23/2016 (v2.25.5) *//*
+ * See https://github.com/Mottie/tablesorter/issues/1161
+ */
+/*jshint jquery:true */
+;( function( $ ) {
+	'use strict';
+
+	$.tablesorter.addParser({
+		id: 'hugeNumbers',
+		is : function() {
+			return false;
+		},
+		format : function( str ) {
+			// add commas every 12 digits; Number.MAX_SAFE_INTEGER is 16 digits long
+			// regex modified from: http://stackoverflow.com/a/2901298/145346
+			return str.replace(/\B(?=(\d{12})+(?!\d))/g, ",");
+		},
+		type : 'text'
+	});
+
+})( jQuery );