remove the project recipe and consequent controller project setup

The .openrc generation is being moved to the keystone cookbook.
Transformed readme to markdown
Added/Updated gitignore
Added application js file to prepare for angularjs controllers
Added/Updated in code documentation to get displayed on upstream documentation section
Merge pull request #361 from tboerger/feature/cleanup

Cleanup backported from rails4 branch
Replaced barclamp controller initializer with before filter
Merge pull request #362 from tboerger/feature/controller-init-replace

Replaced barclamp controller initialzer with before filter
Replaced all license headers with unified layout
Merge pull request #364 from tboerger/feature/license-header

Replaced all license headers with unified layout
Merge pull request #357 from mapleoin/openrc

remove the project recipe and consequent controller project setup
Enable the ComputeV3 endpoints

Nova v2 is deprecated, and Tempest expects V3 to be available.
(it is still optionally though, but I think it makes to unconditionally
enable it by default in SUSE Cloud)