erlang-r16: Bump to version R16B01

Adds `--with-wxmac` to enable wxWidgets support and `--with-fop` to
build PDF documentation.

It also includes a two small fixes for Mac OS X 10.9 which no longer
includes iodbc in it's default sdk and only provides headers inside
Xcode.app, so we abuse configure crosscompile vars to fix detection.