Revert "First step in workflowisation of groups"

This reverts commit 816c998c26ed7cdf6db0b78a922d97c7e2360fc9.
Backend to forbid change request commit when current state diverged
Merge remote-tracking branch 'ncharles_origin/proto/workflows' into proto/workflows
Improve change request page UI
Merge remote-tracking branch 'vme_origin/proto/workflows' into proto/workflows

Conflicts:
	rudder-core/src/main/scala/com/normation/rudder/services/workflows/WorkflowService.scala
Removing autoDeploy property
Merge remote branch 'fanf_origin/proto/workflows' into proto/workflows
Move workflowInfo to comet packages
Improve notification and make it COMET!!!
Merge branch 'proto/workflows' of git://github.com/fanf/rudder into proto/workflows
An unmergeable change request can not be commited
Merge remote-tracking branch 'ncharles_origin/proto/workflows' into proto/workflows
UI improves : popup after step change, buttons are now updated
Merge remote-tracking branch 'FAR/proto/workflows' into proto/workflows

Conflicts:
	rudder-web/src/main/scala/com/normation/rudder/web/snippet/administration/ChangeRequestDetails.scala
Adapt Change request default name to action
improve perf for displaying CR grid and correct sorting on id
Merge remote branch 'vince_origin/proto/workflows' into proto/workflows