Fixed code style in asynchronous publishing JavaScript code
Fix EZP-23208: async publishing JavaScript polling gives bad results
EZP-23208: Added a better error handling in the async. publishing queued page
EZP-23208: Improved the async. publishing queue UI

Added some style and made it display the time between two checks and the number
of attempts.
EZP-23208: fixed the wrong version check in the async. publishing ezjscore func
Merge pull request #1048 from ezsystems/ezp-23208_async_ui

EZP-23208: async publishing JavaScript polling gives bad results