Added text for options created using a dataprovider

Fixes mouseover text appearing blank for multiselects generated by dataprovider

dist/js/bootstrap-multiselect.js

@@ -1223,6 +1223,7 @@
                         selected: !!option.selected,
                         disabled: !!option.disabled
                     });
+                    $tag.text(option.label || option.value);
                 }
                 
                 $select.append($tag);