Core:  added permissions for events.
Merge branch '7.x-dev' of https://github.com/imagex/imagex_events into 7.x-dev
Core: updated with new role names
MISC added depedency & additional permission.
MISC - missed create event permission (added)
MISC: added scheduler variables
CORE: new field for addthis, leveraging imagex_adthis
Merge pull request #3 from emmairwin/7.x-dev

Core: permissions added for events added + moderation enabled
Resolved conflicts.