bump version to v2.7.1

bump version to v2.6.2

bump version to v2.6.1

bump version to 2.6.0

bump version to v2.5.2

bump version to 2.1.4rp

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

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

Stable version.

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