Check if user is group owner or admin if Read-Only
Add new method to reset the default and return settings id.

Deprecate existing methods. The id of the created rendering
settings are returned.
Use the new internalReset method.
Fix when ownership is check in reset default.
Fix failing tests.
Add test for saveSettings in read-only group.
Handle Operation not supported exception.
Add test for read-only
Add test for reset settings.
Merge pull request #27 from jburel/12145-rnd-settings

12145 rnd settings