Add ruby modeline to Vagrant file

Opens up in appropriate mode in Vim and Emacs
Add provider-specific config block to support VMWare Fusion.
Explain VMWare Fusion as alternative to VirtualBox in the README.
Merge pull request #64 from mahipal/add-vmware-fusion-support

Add support for VMWare Fusion.
Merge pull request #50 from yuvipanda/modeline

Add ruby modeline to Vagrant file
fixes RVM aliasing [closes #62]

Fuzzy aliasing no longer worked here, being more strict.
document why we provision bundler

References #49.
rewording
document the new rsync mechanism for sharing folders
set locale-related vars to en_US.UTF-8 [fixes #47]
Added forwarding on NodeJS port (5001)
Merged master
Merge branch 'master' of github.com:polopi/rails-dev-box