Update date of last release.
Update date of last release.

square/pollexor,hambroperks/pollexor,hambroperks/pollexor,StevenTsai/pollexor,hambroperks/pollexor,qingsong-xu/pollexor,qingsong-xu/pollexor,chenrui2014/pollexor,hambroperks/pollexor,chenrui2014/pollexor,qingsong-xu/pollexor,StevenTsai/pollexor,square/pollexor,chenrui2014/pollexor,StevenTsai/pollexor