[cmake-developers] OS X packaging updates

[Adam Strzelecki]

> I had to revert again because it causes the Qt4Deploy to
> fail.  The topic changes the signature of gp_file_type.
> User projects could be calling that, so we can't change it.
> In this case it is the Modules/DeployQt4.cmake file that
> was calling it.

Thanks for spotting that. I've send updated 3/6 patch that now takes executable as an optional argument so we don't change any existing function signatures.

--Adam