added a div for the search results failure messages to allow for clearing the message on subsequent searches to prevent duplicate messages from being displayed
remove duplicate empty() call and also support clearing previous search results
WIP. on a successful save of a new test case, flash a message for a few seconds. Doesn't seem to work when saving existing tests. Also noticed that when creating a new test, if you save multiple times it creates multiple test cases which could be due to the fact that we are using api/new instead of loading api/<test case id> after saving. Also the flashed message is not styled