Regenerated gemspec for version 1.3.1
Regenerated gemspec for version 1.3.1

avantcredit/webmock,hilben/webmock,ixti/webmock,spjsschl/webmock,sinisterstuf/webmock,bblimke/webmock,arronmabrey/webmock,sferik/webmock,taiki45/webmock,hobodave/webmock,qrush/webmock,influxdb/webmock,davidbegin/webmock,VincentZhao/webmock,maruware/webmock,webmock/webmock,henrik/webmock,Omnihuron/webmock,xuwupeng2000/webmock