Update podspec to reduce maintenance
Update podspec to reduce maintenance

From here on out, just update the `s.version` field — don't worry about the tag, it will take care of itself!
tonyarnold/expecta,modocache/expecta,jmoody/expecta,modocache/expecta,ashfurrow/expecta,PatrykKaczmarek/expecta,jmburges/expecta,ashfurrow/expecta,iguchunhui/expecta,modocache/expecta,modocache/expecta,iosdev-republicofapps/expecta,Lightricks/expecta,iosdev-republicofapps/expecta,wessmith/expecta,ashfurrow/expecta,jmoody/expecta,suxinde2009/expecta,tonyarnold/expecta,PatrykKaczmarek/expecta,jmoody/expecta,iguchunhui/expecta,jmburges/expecta,Bogon/expecta,udemy/expecta,iosdev-republicofapps/expecta,tonyarnold/expecta,udemy/expecta,PatrykKaczmarek/expecta,tonyarnold/expecta,jmburges/expecta,Lightricks/expecta,Bogon/expecta,specta/expecta,iosdev-republicofapps/expecta,jmburges/expecta,jmoody/expecta,ashfurrow/expecta,wessmith/expecta,suxinde2009/expecta,PatrykKaczmarek/expecta