Merge pull request #172 from HazCod/patch-1

Toggle combobox when pressing down arrow.

Author: wagedomain

js/bootstrap-combobox.js

@@ -371,6 +371,10 @@
   , keyup: function (e) {
       switch(e.keyCode) {
         case 40: // down arrow
+         if (!this.shown){
+           this.toggle();
+         }
+         break;
         case 39: // right arrow
         case 38: // up arrow
         case 37: // left arrow