Add 'numberDisplayed' default to multiselect and use that to determine when to...

Add 'numberDisplayed' default to multiselect and use that to determine when to display a number in the select box

js/bootstrap-multiselect.js

@@ -57,14 +57,14 @@
         // Default options.
         defaults: {
             // Default text function will either print 'None selected' in case no
-            // option is selected, or a list of the selected options up to a length of 3 selected options.
+            // option is selected, or a list of the selected options up to a length of 3 selected options by default.
             // If more than 3 options are selected, the number of selected options is printed.
             buttonText: function(options, select) {
                 if (options.length == 0) {
                     return this.nonSelectedText + ' <b class="caret"></b>';
                 }
                 else {
-                    if (options.length > 3) {
+                    if (options.length > this.numberDisplayed) {
                         return options.length + ' ' + this.nSelectedText + ' <b class="caret"></b>';
                     }
                     else {
@@ -113,7 +113,8 @@
             filterBehavior: 'text',
             preventInputChangeEvent: false,
             nonSelectedText: 'None selected',
-            nSelectedText: 'selected'
+            nSelectedText: 'selected',
+            numberDisplayed: 3
         },
         
         // Templates.