Changes:
- Fixed screen recording on devices that do not support getUserMedia api.
- Added C label buttons to nintendo 64 virtual gamepad.
- Fixed EJS_color bug.
- Savestates are pulled from the core itself, to always be correct.
- Several new cores. (a5200, beetle_vb, desmume2015, fbalpha2012_cps1, fbalpha2012_cps2, fceumm, gambatte, mame2003, mednafen_psx, mednafen_psx_hw, melonds, mgba, mupen64plus_next, nestopia, snes9x)
- D-pad for virtual gamepad.
- Updated translation files to include new menu options.
- Ability to add more than one zone object to virtual gamepads.
- Added ability to set custom menu options.
- Virtual gamepad left handed mode.
- Fixed Screen record svg.
- Updated svg icons.
- Cache "clear all" button.
- Cache button moved to menu bar.
- Added feature that will display the current downloaded size when the content length is not available.
- Updated repository docs
