implement z-index support for themeing system view and gamelist views

Merge branch 'master' of https://github.com/RetroPie/EmulationStation …

…into windows

include vlc plugins in final zip file

Fix the extremely subtley broken FindFreeType.cmake by removing it in

favor of the FindFreetype.cmake that comes with CMake.
Hopefully fixes issue jrassa#144.

Stable version.

INI-style es_systems.cfg and the original theme system.