add more granularity

bring core in-line with the svn core

Update old-core to be functionally similar to the new one

Added Hakchi platform

fix gravis gamepad

Add Libretro MIDI output support

Add support for more than 2 keyboards. Fixes #57

Fix crash on Vita by pulling in sce_fiber.c

Mouse improvements

Refactor android jni makefiles

Genode compatibility

Some malloc implementations will return memory that is mapped without
executable permissions and this breaks the dynamic recompiler. This is
the case for some kernels supported by Genode, so use the 'malloc_exec'
symbol to allocate the code cache for Genode.