Changes:

• Cores are now represented as additional modules
• System dir is now '~/system'
• Core info dir is now '~/info'
• RGUI default browser dir is now '/usr/share/games/nes/kachikachi' instead of '/'
• Disabled bilinear filtering and enabled integer scaling for every NES Mini preset
• Now you can enter RGUI in-game menu by pressing Select + Start on the controller
• Option to use Nestopia instead of FCEUmm for regular NES games (use_nestopia.hmod)
• Added template for adding new cores via hakchi module system
• Now using mGBA as GBA core
• Added Stella core for Atari 2600 emulation
• Added mednafen_pce_fast as PCE/TG16 core
• Added fb_alpha cores for Neo-Geo and CPS II emulation