pref are now saved
Update README.md
*preference: web provider is now a combo
*fetchrom.sh: set some download timeout
download only the missing roms
added MAME_BIN for specify a mame path -DMAME_BIN=\"/usr/games/mame\"
Update fetchrom.sh

#!/bin/sh -> #!/bin/bash
setView
Merge remote-tracking branch 'upstream/master'

Conflicts:
	README.md