Rewrote init-phase stuff:

- now inc/init.php is being loaded as first include file
- renamed some libs (old names from my previous project "MyAutoInstaller
  Community") to have them conform with naming convention (easier loading, too)
- moved code to new functions to have it encapsulated
- inc/mysql-connect.php is now deprecated
- updated TODOs.txt

Signed-off-by: Roland Häder <roland@mxchange.org>