Don't run ReplacingConstraintsTests on OS X
Don't run ReplacingConstraintsTests on OS X

This is a :poop: workaround for travis not yet supporting 10.10
and should be reverted in the future.

ernestopino/Cartography,ken0nek/Cartography,cogddo/Cartography,tonyli508/Cartography,kliu/Cartography,brunov0id/Cartography,msdgwzhy6/Cartography,gaurav1981/Cartography,jessesquires/Cartography,bestwpw/Cartography,ken0nek/Cartography,u10int/Cartography,kliu/Cartography,gaurav1981/Cartography,seyton/Cartography,iosyoujian/Cartography,xBrux/Cartography,vinod1988/Cartography,dougbeal/Cartography,ppamorim/Cartography,LiuDeng/Cartography,msdgwzhy6/Cartography,KyoheiG3/Cartography,cogddo/Cartography,rankun203/Cartography,linchanlau/Cartography,sai43/Cartography,jessesquires/Cartography,ArthurKK/Cartography,ppamorim/Cartography,eeschimosu/Cartography,rankun203/Cartography,noluyo/Cartography,tonyli508/Cartography-IOS7,tonyli508/Cartography-IOS7,petester42/Cartography,seyton/Cartography,dougbeal/Cartography,eeschimosu/Cartography,PiersonBro/Cartography,KyoheiG3/Cartography,Khan/Cartography,tonyli508/Cartography,ArthurKK/Cartography,Khan/Cartography,u10int/Cartography,TimothyChilvers/Cartography,bzmario/Cartography,lixiaohu1990/Cartography,ernestopino/Cartography,PiersonBro/Cartography,TimothyChilvers/Cartography,alvivi/Cartography,brunov0id/Cartography,xBrux/Cartography,lixiaohu1990/Cartography,sai43/Cartography,LiuDeng/Cartography,vinod1988/Cartography,noluyo/Cartography,linchanlau/Cartography,petester42/Cartography,alvivi/Cartography,zilaiyedaren/Cartography,bestwpw/Cartography,bzmario/Cartography,cnbin/Cartography,fullstackclub/Cartography,fullstackclub/Cartography,zilaiyedaren/Cartography,iosyoujian/Cartography,cnbin/Cartography