YTimeClient: changed accept and content type in +createPunch:withCallback: to JSON
YTimeClient: changed accept and content type in +createPunch:withCallback: to JSON

byu-oit/ios-byuSuite,byu-oit/ios-byuSuite,byu-oit-appdev/ios-byuSuite,byu-oit-appdev/ios-byuSuite