Initial Commit
Removed linux specific fields

Update to exclude fields radioactivity and og_group reference
Removed features_exclude mentions of radioactivity, and OG
make file for imagex_events

added registration module
File Attachement (leveraging Common Fields) added

changed title to say 'Event title'
removed imagex_blog dependency
Merge pull request #1 from emmairwin/7.x-dev

Initial Commit of ImageX Base for Events