openstack can launch with tags
Added .idea to gitignore
Fixed typo causing zone rotation to fail
Remove references to using explicit content for user data
Changed mako to Jinja. Changed urllib2 to requests. Removed ability to explicitly specify user-data content (file & url only now).
Also cleaned up imports not needed since removing set_hostname via ssh functionality. This should now be done via Cloud-Init
Merge branch 'better_openstack_tagging' into add_cloudinit_support

Conflicts:
	gonzo/backends/openstack.py
Started adding better error messages for failed user-data retrieval