Libretro core merged to upstream. Changes from legacy libretro core (based on ScummVM 2.1.1): - massive cleanup/fix/refactor/improvement of makefiles and build scripts - fix wiiu build - fix 3ds build and add 'highres' engines - add win32 support - add support for mouse relative movement (e.g. Myst 3) - add cloud feature support (system shared libcurl needed) - add support to select system shared dependencies at build time - add core reset function - add games preliminary checks before being loaded in ScummVM - fix crash for games/scummvm files not recognized in ScummVM - add italian translation - increase gamepad cursor speed reduction while pushing R2 - added virtual keyboard feature - added D-pad cursor acceleration time setting