AC-726 Improved search filter, eliminating need for reset button. Fixed drop-down menu on jobs detail page, replacing summary with host summary. Fixed error message on job templates and jobs when list of playbooks cannot be found- message is now informational rather than cryptic error.

awx/ui/static/js/forms/Credentials.js

@@ -274,7 +274,7 @@ angular.module('CredentialFormDefinition', [])
             reset: { 
                 ngClick: 'formReset()',
                 label: 'Reset',
-                icon: 'icon-trash',
+                icon: 'icon-undo',
                 'class': 'btn btn-default',
                 ngDisabled: true          //Disabled when $pristine
                 }