add fedora 18 support
fix dependencies for vbox additions, remove minor cruft
[BENTO-56] Fix missing vagrant user in the sudoers file
Merge pull request #63 from juliandunn/BENTO-56

[BENTO-56] Fix missing vagrant user in the sudoers file
Merge branch 'BENTO-20' of github.com:josephholsten/bento into josephholsten-BENTO-20
Clean up for new provisionerless box format. Add sshd optimization.