* UI2:assets base fix typo

* Each cmd command must end with semicolon
* UI2 lua conversion: mission menu and mission briefing
* UI2:mailclient small fixes
* Fix typo
* Trailing whitespaces
* Const + reduced scope.
* Const.
* Const + reduced scope.
* Const + reduced scope.
* Some more work on FR #4112 (Show which soldiers are in hospital)
* Const.
* ui lua integration: fixed bug overriding non-existing virtual method

* uiContainerNode specified an override of onInitNode() that did not
* exist in any of the base classes.
* however the intention was that it should override initNode() found in
* the base of uiNode
* Further fix for the travis call.
* Const, reduced scope.
* Const, reduced scope.
* Reduced scope + const.
Merge pull request #2 from drone-pl/master

Mission{menu,briefing} conversion and other fixes