Message11177

Fixed as of https://hg.python.org/jython/rev/19080570ee62

test_io, test_io_jy and test_univnewlines pass now also on Windows.

This came from locale.py completely operating in fallback mode, while additionally assuming to be on posix. For now I fixed the crucieal points in locale.py, but the better, more sustainable fix would be to port _localemodule.c properly to Java (still locale.py would need adjustment for proper platform detection or needs to be added as PyShadowString-target to sys.platform).
However porting _localemodule should maybe better go directly into Jython 3...