Adding option to skip YUI compressor

As this change is close to the proposed release, skipping the compression until YUI_COMPRESS_ASSETS=Y is set during builds.
moving controllers/admin/ {commands, configuration, garage, package_definition, package_repostiories, pipelines_snippets}, controllers/admin/plugins, controllers/admin_controller, required libs & util
adding empty views required for specs to pass
fixing specs
fixing deprecations warnings
moving controllers/admin/ {pipeline_groups, pipelines, materials, stages, jobs, tasks}
adding empty views required for specs to pass
fixing specs
fixing deprecations warnings
moving controllers/admin/tasks specs
adding empty views required for specs to pass
fixing specs
fixing deprecations warnings
add failing specs
Merge pull request #281 from arvindsv/admin_controllers_for_srinivasupadhya

#130 - Move some admin controllers
#152 - git version below 1.8 does not support submodule --name
#130 - Add flag to prevent new Rails from being packaged.

* If USE_NEW_RAILS flag is not set rails.new folder is not packaged in the cruise.war.
Merge pull request #282 from arvindsv/submodule_fail_name_path_different

#152 - git version below 1.8 does not support submodule --name
Merge pull request #280 from sachinsudheendra/disable-compression

Adding option to skip YUI compressor
#130 - Changing the conditional statement to be a more explicit check on the flag to be not equal to Y.