Fix compatibility with ruby 1.8
Fix compatibility with ruby 1.8

virtkick/fpm,vi4m/fpm,joseph-onsip/fpm,josephfrazier/fpm,godp1301/fpm,virtkick/fpm,linearregression/fpm,schatt/fpm,linearregression/fpm,virtkick/fpm,hlawrenz/fpm,rbramwell/fpm,mildred/fpm,fetep/fpm,mzaccari/fpm,wyaeld/fpm,godp1301/fpm,josephfrazier/fpm,schatt/fpm,josephfrazier/fpm,johnbintz/fpm,jerizm/fpm,paul-krohn/fpm,snailwalker/fpm,paul-krohn/fpm,djhaskin987/merge-demo,elvido/fpm,djhaskin987/merge-demo,cturra/fpm,fetep/fpm,pskrz/fpm,vi4m/fpm,johnbintz/fpm,schatt/fpm,sideci-sample/sideci-sample-fpm,linearregression/fpm,Tapjoy/fpm,doghrim/fpm,pskrz/fpm,schatt/fpm,rbramwell/fpm,elvido/fpm,doghrim/fpm,mzaccari/fpm,snailwalker/fpm,doghrim/fpm,mildred/fpm,cturra/fpm,dischord01/fpm,Tapjoy/fpm,mildred/fpm,mzaccari/fpm,joseph-onsip/fpm,elvido/fpm,joseph-onsip/fpm,vi4m/fpm,rbramwell/fpm,paul-krohn/fpm,cturra/fpm,dischord01/fpm,pskrz/fpm,wyaeld/fpm,fetep/fpm,sideci-sample/sideci-sample-fpm,tjyang/fpm,jerizm/fpm,godp1301/fpm,rbramwell/fpm,cturra/fpm,pskrz/fpm,snailwalker/fpm,paul-krohn/fpm,doghrim/fpm,Tapjoy/fpm,gearmover/fpm,gearmover/fpm,tjyang/fpm,hlawrenz/fpm,jerizm/fpm,wyaeld/fpm,mzaccari/fpm,djhaskin987/merge-demo,wyaeld/fpm,linearregression/fpm,gearmover/fpm,jerizm/fpm,tjyang/fpm,virtkick/fpm,josephfrazier/fpm,fetep/fpm,dischord01/fpm,hlawrenz/fpm,snailwalker/fpm,joseph-onsip/fpm,sideci-sample/sideci-sample-fpm,johnbintz/fpm,godp1301/fpm,Tapjoy/fpm,vi4m/fpm,mildred/fpm,tjyang/fpm,gearmover/fpm,hlawrenz/fpm,dischord01/fpm,elvido/fpm