Minor improvements.

-Optimized input setup. Emulationstation shows four input configuration items:
1. Start ES-Config
2. Start retroarch-joyconfig -> create retroarch autoconfig file and update es_system.cfg
3. Disable Autoconfig (if someone prefers own key mappings)
4. Enable Autoconfig
-GPSP: fix RPI revision check. My RPI has the revision 100000d.
-MD/GENESIS: add *.md and *.zip
-BasiliskII: change COMMAND and add some user information.