Moving galaxy specific configuration to its own folder (config/galaxy)
Streamlined fabfile to use a single galaxy location variable.  Added showlog functionality.
Streamlined provisioner code to use defined paths.
Updated vagrantfile to do proper port forwarding. Replaced repository cloning with download and unzip.  Added automatic user addition.
Fixed python egg cache error by moving its location.  Changed galaxy port forward to 8080.  Wrapped credentials prompt in a method.
Added options to provisioning script.
Vagrantfile parses config.yml, which centrally stores configuration about galaxy and the VM.
Fixed user registration
Fixed fab file by setting execute on run_tool_shed.sh
Updated readme to reflect latest changes.