[CB-2384] Add new iOS Project Setting to suppress the form accessory bar above the keyboard
Retain cycle fix
[CB-2634] Copy www fails w spaces in filenames

- fix Copy www directory script so that it does not truncate filenames with spaces
[CB-2618] xcode build from Network Drive Fails

- fix copy of fileand symlinks attributes errors
- still attempt to hard link first but then do copy if that fails
[CB-2638] Fix iOS project warnings on Retina imgs

-fixed iphone and ipad 2x images to remove warnings
-ran images thru imageoptim
Merge remote-tracking branch 'upstream/master' into cb1285_hack