Switch Travis to Xcode 8.3
Switch Travis to Xcode 8.3

bayareabear/bluepill,linkedin/bluepill,Citrix-ShareFile/bluepill,Citrix-ShareFile/bluepill,linkedin/bluepill,bayareabear/bluepill,linkedin/bluepill,bayareabear/bluepill,Citrix-ShareFile/bluepill,linkedin/bluepill,bayareabear/bluepill,Citrix-ShareFile/bluepill,linkedin/bluepill,linkedin/bluepill