Added the exclude pattern to rcov:gen (cherry picking from commit 1615c351ade1c7ea3d4ce04cbc1f2557ab65573f)
Added the exclude pattern to rcov:gen (cherry picking from commit 1615c351ade1c7ea3d4ce04cbc1f2557ab65573f)

interviewstreet/acts_as_follower,tcocca/acts_as_follower,dummied/acts_as_follower