Retroarch: add quake, lynx and msx
retroarch-core-options.cfg: Add mupen64plus core options
Retroarch: Add n64
fmsx-libretro: Move to source based installation
libretro-handy: Move to source based installation
mupen64plus-libretro: Move to source based installation
Merge pull request #530 from gizmo98/patch-2

-Move libreto-handy, fsmx-libretro ans mupen64plus-libretro emulators from experimental to source based installation
-Add four cores to retroarch.sh
-Add core options for mupen64plus-libretro
Merge remote-tracking branch 'upstream/srcbin_reorga' into upstream_master
install sample.dgenrc so a binary install has it available for configure
remove quoting from ini file key/value setting to mimic previous behaviour. Will rework these functions to provide clear naming for those that
quote and those that don't