20180708

Springboard enhancements

• Use Select/Start to move the file list by letter
• File lists wraps around using Left/Right
• Emulator list wraps around using Left/Right

Emulator enhancements

• [GB] Emulate LCD disabled
• [SMS] Disable debug message (slow down)
• [GB] Fix rendering issue with some titles
• [GB] Support large SRAM
• [GB] Fix palette issue on GB (not color) titles
• [GB] Fix sprite clipping (left side of screen)
• [NES] Add mapper 10
• Improve audio range (extra volume level)
• Next-gen firmware support