added putty compatible version of Vagrant's `insecure_private_key` for convenience
make `vagrant ssh` terminal fully functional again (fixes #64)
update to vagrant-berkshelf 3.0.0
update README
add `C:\Program Files\Oracle\VirtualBox\` to the PATH as well to support newer VirtualBox versions (> 4.3.12) as well
fix tests for #64
update rake in Gemfile.lock
resolve merge conflict with master for PR #65