Added ProfilePhoto model.  WCMS-70
oops. didn't mean to include this file
Merge branch 'master' into profile_photos
added two versions and a file extension white list to the ProfilePhotoUploader class. added MiniMagick dependency for image resizing
Merge branch 'master' into profile_photos

Conflicts:
	spec/lib/buweb/person_spec.rb
Merge pull request #12 from biola/profile_photos

Profile photos