Added the address to GitLab running at the VM
Added GitLab webapp username/password to README

Default credential are mentioned in https://github.com/gitlabhq/gitlabhq/blob/master/doc/install/installation.md, but it´s nice to have it located in this README, for those who install GitLab using Vagrant
Updated Vagrantfile to use vagrant-root instead of the deprecated v-root
Merge remote-tracking branch 'gitlabhq/master'
Described how the app should be started. This enables the app on http://192.168.3.14:3000/
The app can be reached on port 3000 if started with 'bundle exec foreman start'
Put back share_folder("v-root", "/vagrant"...
Merge pull request #71 from stabenfeldt/master

Added username and password to the GitLab webapp in the README