iOS, status update

[Jan-Marek Glogowski]

Am 04.10.2017 um 08:52 schrieb Jan Iversen:
> Supported platforms
> arm64 for production (sorry this is the apple name for aarch64), used by all (newer) iPhones and iPads. 
> arm64 debug, to enable debugging on a i* from Xcode on a mac.
> x86-64 debug, to enable the Xcode simulator to work for i* devices
> 
> SDK
> min. 10.3 (no need to support old iOS versions)
> 
> XCODE
> 8.3 
> Current 9.0 does not compile the libraries correctly, but it also does not compile the normal LO app for macOSX correctly.

Please add this information to README.mds' "build chain and runtime
baselines" section.

Thanks

Jan-Marek