Fixes #3927 - Allow VMs to provision via user-data

fixes #3975 - add audit to classes Domain, Subnet, SmartProxy, Role, Usergroup, AuthSource, Image, Bookmark that were not audited

fixes #2741 - rails 3 syntax

refs #2254 - STI Host relationships

This commit adds most of the functionality required for API v1

The overall goal was to extract the existing JSON response
overall controllers, and to move them to a seperate name space.

• documentation was added to all requests (available under /apidoc)...

adds ec2 provisioning support fixes #1223

- added progress bar for instance creation
- minor fixes for certname based deployments
- added ssh provisioning support to orchestartion, which utilize finish
scripts by default
- added images support (part of the vm compute tab)...