Fixes and Updates

Updated PhpSysInfo, phpMyAdmin and Rouncube (fixes http://bugs.zpanelcp.com/view.php?id=698), removed some un-needed files and also fixed bug in http://bugs.zpanelcp.com/view.php?id=661. I've added the previous panel headings fix to the light theme variant.

(I think) I managed to fix my annoying auto merge problem as well :smile: