Changes:
- 'ExcplicitDedication' type of group can be created/deleted by Root admin only
- Users can no longer create this type of affinity group
- RootAdmin can create this type of affinitygroup at domain level. Such a domain level group is available for all accounts in that domain for listing and for use during deployVM.
- The domain level affinitygroup should be visible to the users in that domain, domain admins and Root admin.
Conflicts:
server/src/com/cloud/api/query/QueryManagerImpl.java
server/src/org/apache/cloudstack/affinity/AffinityGroupServiceImpl.java
server/test/org/apache/cloudstack/affinity/AffinityApiUnitTest.java
