remove PicoDrive-specific stuff, add readme
-rw-r--r-- 10 .gitignore
-rw-r--r-- 395 README
drwxr-xr-x - common
drwxr-xr-x - gp2x
drwxr-xr-x - linux
drwxr-xr-x - pandora
drwxr-xr-x - win32