Prep for release 1.0.6
Prep for release 1.0.6

1.0.5 was built on 1.9.3 and needs to be rebuilt using 1.8.7

davidrv/delayed_job_mongoid,mvoloz/delayed_job_mongoid,matekb/delayed_job_mongoid,amw/delayed_job_mongoid,Guidecase/delayed_job_mongoid,collectiveidea/delayed_job_mongoid,kierangraham/delayed_job_mongoid,dblock/delayed_job_mongoid