fixes #2138 - Ensure at least one Location / Organization exists
refactor - move clone taxonomy to models
fixes #1999 - Allow org/location to selectively ignore a domain, subnet etc

TODO:  excluding views
fixes #2001 - Changing Loc or Org after compute resource selection give 500 error
hosts mulitple
adds nullify when deleting taxonomies
fixes #2033 - Cannot assign a host to an org

Now its possible to change Locations / Organizations only via mass assign
changes to taxonomies_controller
new org wizard.
refactor hash_for links on taxonomies/index
clone action, view, tests
minor cleanups that did not rebased cleanly
rebase 6f9e04c913856c3adbc02010ce7a9e187ed2682b
ensures that when taxable objects (such as a domain) does not fire a taxonomy validation

somehow this should be false by default, but its not.
1.1RC5