Styled UI for application states

Currently supported styling ready for following **states**:
* running
* paused
* stopped

**Additional states**:
* error
* processing

You can use them separately (recommended) or you can even combine these as following:
* .stopped.processing (e.g. for  starting - app is still stopped, but will be running soon)

###### Mark-up:
%li.provider_application **.STATE.ADDITIONAL_STATE**