Added control-label class to textarea. Fixes #373

Author: Dervisevic

src/directives/decorators/bootstrap/textarea.html

@@ -1,5 +1,5 @@
 <div class="form-group has-feedback {{form.htmlClass}} schema-form-textarea" ng-class="{'has-error': form.disableErrorState !== true && hasError(), 'has-success': form.disableSuccessState !== true &&  hasSuccess()}">
-  <label class="{{form.labelHtmlClass}}" ng-class="{'sr-only': !showTitle()}" for="{{form.key.slice(-1)[0]}}">{{form.title}}</label>
+  <label class="control-label {{form.labelHtmlClass}}" ng-class="{'sr-only': !showTitle()}" for="{{form.key.slice(-1)[0]}}">{{form.title}}</label>
 
   <textarea ng-if="!form.fieldAddonLeft && !form.fieldAddonRight"
             class="form-control {{form.fieldHtmlClass}}"