Update travis config for xcode 7
Update travis config for xcode 7

Touchwonders/Bond,sportlabsMike/Bond,wangmb/Bond,FiRiN59/Bond,spire-inc/Bond,ReactiveKit/Bond,SwiftBond/Bond,Touchwonders/Bond,danthorpe/Bond,ArthurKK/Bond,adamcin/Bond,AlexSeverinov/Bond,wangmb/Bond,tonyarnold/Bond,REXLabsInc/Bond,tuanphung/Bond,adamcin/Bond,tuanphung/Bond,wangmb/Bond,tonyxiao/Bond,morizotter/Bond,FiRiN59/Bond,AlexSeverinov/Bond,morizotter/Bond,sanyaade-iot/Bond,ushisantoasobu/Bond,danthorpe/Bond,ArthurKK/Bond,joshavant/Bond,sportlabsMike/Bond,tonyxiao/Bond,sanyaade-iot/Bond,tuanphung/Bond,joshavant/Bond,danthorpe/Bond,tonyarnold/Bond,spire-inc/Bond,giancarloandroid/Bond,SwiftBond/Bond,sanyaade-iot/Bond,ushisantoasobu/Bond,ReactiveKit/Bond,adamcin/Bond,ArthurKK/Bond,REXLabsInc/Bond,giancarloandroid/Bond,jsiffels/Bond,jsiffels/Bond