Changed to Joomla coding style

TODO: Fix New/Edit Team form.
Added editable Team Display.
Improved some things
Added Games Backen interface

Also changed database, so every table has an artificial key.
Added Game_Map Backend interface

Added #__jclan_game_mode Table to the database, which represents
different game modes.
Added Game_Mode and Season Backend Interface
Added Lineup Backend Interface
Added Player_Lineup Backend Interface
Finished Backend Interface Table Views.

Added Position and Matches Backend Interface. Started working on
frontend display.
Added Matches Frontend View.
Added Player Lineups to Matches View.
Added More en-GB translated Strings.
Added More untranslated Strings.
Merge remote-tracking branch 'origin/develop'