Removed contributors. Too many and too much work to update.
Removed contributors. Too many and too much work to update.

yufi113/picturefill,ddeveloperr/picturefill,purposeindustries/picturefill,rockmandew/picturefill,samiadelgado/picturefill,iancrowther/picturefill,yufi113/picturefill,yubin-huang/picturefill,albell/picturefill,chrismcandrew/picturefill,patrickkettner/picturefill,footiealf/picturefill,patrickkettner/picturefill,chrismcandrew/picturefill,footiealf/picturefill,scottjehl/picturefill,mcanthony/picturefill,albell/picturefill,scottjehl/picturefill,guardian/picturefill,iancrowther/picturefill,ddeveloperr/picturefill,rockmandew/picturefill,demateu/picturefill,mcanthony/picturefill,samiadelgado/picturefill,demateu/picturefill,purposeindustries/picturefill,guardian/picturefill,yubin-huang/picturefill