remove preload task.
remove preload task.

Fixes #633

vladimirich/resque,paran0ids0ul/resque,begriffs/resque,lileeyao/resque,AlexVPopov/resque,partap/resque,lileeyao/resque,tylerdooling/resque,fmitech/resque,paran0ids0ul/resque,rutikasb/resque,m0dd3r/resque,ktheory/resque,stitchfix/resque,fmitech/resque,sideci-sample/sideci-sample-resque,l4u/resque,sideci-sample/sideci-sample-resque,vladimirich/resque,timo-p/resque,hoffmanc/resque,jonatas/resque,ktheory/resque,jacknguyen/resque,igorjancic/resque,delectable/resque,eileencodes/resque,begriffs/resque,ngpestelos/resque,kangkot/resque,m0dd3r/resque,vietnt/resque,l4u/resque,ducthanh/resque,stitchfix/resque,sufery/resque,bonekost/resque,delectable/resque,lukeasrodgers/resque,jacknguyen/resque,timo-p/resque,lukeasrodgers/resque,ryan-drake-stoker/resque,igorjancic/resque,bhighley/resque,ychaim/resque,sufery/resque,tylerdooling/resque,redhotpenguin/resque,hoffmanc/resque