focus focusedParent (menuInner or searchbox) after selecting option instead of blur (#2474)

Author: caseyjhol

js/bootstrap-select.js

@@ -2468,7 +2468,7 @@
             option.selected = !state;
 
             that.setSelected(clickedIndex, !state);
-            $this.trigger('blur');
+            that.focusedParent.focus();
 
             if (maxOptions !== false || maxOptionsGrp !== false) {
               var maxReached = maxOptions < getSelectedOptions(element).length,