fix(timepicker): add type attribute for meridian button

template/timepicker/timepicker.html

@@ -9,7 +9,7 @@
 		<td class="control-group" ng-class="{'error': invalidHours}"><input type="text" ng-model="hours" ng-change="updateHours()" class="span1 text-center" ng-mousewheel="incrementHours()" ng-readonly="readonlyInput" maxlength="2" /></td>
 		<td>:</td>
 		<td class="control-group" ng-class="{'error': invalidMinutes}"><input type="text" ng-model="minutes" ng-change="updateMinutes()" class="span1 text-center" ng-readonly="readonlyInput" maxlength="2"></td>
-		<td ng-show="showMeridian"><button ng-click="toggleMeridian()" class="btn text-center">{{meridian}}</button></td>
+		<td ng-show="showMeridian"><button type="button" ng-click="toggleMeridian()" class="btn text-center">{{meridian}}</button></td>
 	</tr>
 	<tr class="text-center">
 		<td><a ng-click="decrementHours()" class="btn btn-link"><i class="icon-chevron-down"></i></a></td>