Edited em_install_megadrive() to not compile if not needed
Edited rps_main_options() to delete ~/RetroPie/emulators/osmose-0.8.1+rpi20121122
Added em_install_megadrive to rps_update_emulators()
Edited em_install_intellivision() to only compile if needed.
Edited rps_main_options() to delete $rootdir/emulators/jzintv-1.0-beta4
Edited rps_update_emulators() to include em_install_intellivision()