2020-01-09-devel-56fb909 nightly build

This nightly release was built on 2020-01-09 using https://github.com/nim-lang/Nim/tree/56fb9096761ad401675a2367ae3681c50b7ce485. The Windows and Linux archives contain pre-packaged source as well as platform specific binaries whereas the OSX archive contains pre-packaged source only. Any of these archives can be used to build Nim on Windows, Linux and OSX.