fix(tap): select tag not working in IE

Cannot prevent default on mousedown in IE when the target is an option
or select element. Closes #1435

js/utils/tap.js

@@ -303,7 +303,7 @@ function tapMouseDown(e) {
     console.log('mousedown', 'stop event');
     e.stopPropagation();
 
-    if( !ionic.tap.isTextInput(e.target) || tapLastTouchTarget !== e.target ) {
+    if( (!ionic.tap.isTextInput(e.target) || tapLastTouchTarget !== e.target) && !(/^(select|option)$/i).test(e.target.tagName) ) {
       // If you preventDefault on a text input then you cannot move its text caret/cursor.
       // Allow through only the text input default. However, without preventDefault on an
       // input the 300ms delay can change focus on inputs after the keyboard shows up.

test/unit/utils/tap.unit.js

@@ -512,6 +512,31 @@ describe('Ionic Tap', function() {
     expect( mouseDownEvent.defaultedPrevented ).toEqual(true);
   });
 
+  it('Should not preventDefault on mousedown if the target is a select element', function() {
+    tapEnabledTouchEvents = true;
+    var e = {
+      isTapHandled: false,
+      isIonicTap: false,
+      target: document.createElement('select'),
+      preventDefault: function(){ this.defaultedPrevented = true; },
+      stopPropagation: function(){ this.stoppedPropagation = true; }
+    };
+    tapMouseDown(e);
+    expect( e.stoppedPropagation ).toEqual(true);
+    expect( e.defaultedPrevented ).toBeUndefined();
+
+    e = {
+      isTapHandled: false,
+      isIonicTap: false,
+      target: document.createElement('option'),
+      preventDefault: function(){ this.defaultedPrevented = true; },
+      stopPropagation: function(){ this.stoppedPropagation = true; }
+    };
+    tapMouseDown(e);
+    expect( e.stoppedPropagation ).toEqual(true);
+    expect( e.defaultedPrevented ).toBeUndefined();
+  });
+
   it('Should tapClick with touchend and fire immediately', function() {
     var e = {
       target: {