Simplify TuxMessageTable

* Faster since messages are loaded only once
* Simpler since we output only almost static html
* More info in messagecollection api -> the X more messages is now always correct

Even more could be moved to JS side to get rid of TuxMessageTable altogether.

Change-Id: Ic6d196cf255f7748cfcbaaf46552fc11732a8965
Merge "Simplify TuxMessageTable"