fixes #1597 - Restrict compute resources access by user

And add some rights to give non admin users so they can perform some normal actions on the hosts they own.

unit/domain_parameter_test.rb self-broke... added a tiny fix.
Removing compute_resources/vms nesting, it is such a nightmare for functional tests....

fixed ui for adding and removing ovirt volumes.
when creating a vm from template, if there was an error in the
form. the vm volumes didnot display correctly.
adding and removing volumes in the same submit action did not function well too.

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)...

fixes #137 - Better support for non-hostname certnames

This patch introduce a new setting :use_uuid_for_certificates which
defaults to false.

users who wish to deploy their hosts using a random unique id, should
enable that setting, and use the certname directive in their puppet.conf...

refs #1589 - Remove hardcoded vmware vsphere_expected_pubkey_hash

Now, users will create a ~/.fog file containing:

=begin
:default:
:vsphere_expected_pubkey_hash: HASH_VALUE
=end

Fog will use this file when contacting vsphere to validate the ssl cert....

fail gracefully if fog is not installed

ensure rubygems are loaded in case facter / puppet are installed as a gem

cleanups to rails 3 boot process

added basic ovirt vm show page, minor fixes in compute resource level

fixes #1574 - ovirt - add remove and show volumes

• volume and interface ordering is now working
• removed include blank because it is a duplicate of the Blank ovirt-template.
• bootable is disabled when editing a vm, because currently I don't handle volume updates. just add and remove of a volume....