Change default C: drive from ~/dosemu/freedos to ~/.dosemu/drive_c
(similar to Wine).
Remove dosemu/freedos/ directory prefixes from the files in the symlink
tarballs. The primary location for the DOSEMU utilities is now
$prefix/share/dosemu/commands.
Make the dosemu script aware of "-X by default".


git-svn-id: https://dosemu.svn.sourceforge.net/svnroot/dosemu/trunk@1390 7758b857-130e-0410-ab9c-d8735a528d18