Update to support for Vagrant 1.3.x

Vagrant 1.3 changed how the Ansible provisioner works.
Document how to configure for NAT
NAT inside the host, not the guest
Define vars for neutron, swift, sec groups

Control enabling neutron, swift, and security groups
from Ansible variables
Rename localrc to localrc.j2
Added fixes for latest ansible and force setting for choosing havana stable release.
Merge pull request #3 from plomakin/master

Added fixes for latest ansible and force setting for choosing havana sta...
Merge pull request #3 from plomakin/master

Added fixes for latest ansible and force setting for choosing havana sta...
Merge branch 'master' of github.com:lorin/devstack-vm
Make the version a variable
raring -> saucy
Remove keyring
Workaround for keyring bug

Add a keyring config file to workaround bug  https://bugs.launchpad.net/bugs/1242992
Modify apache conf to workaround bug

Workaround for https://bugs.launchpad.net/devstack/+bug/1243075
Use port 5000 for auth endpoint
Use print as python function
Bump memory to 4GB of RAM
Update readme for saucy
Switch to using local.conf

DevStack now recommends using local.conf instead of localrc for config
Convenience makefile