TODO when rebasing

These two topics:

> 37a5a2a mingw: use domain information for default email
> 4273e68 getpwuid(mingw): provide a better default for the user name
> dbed828 getpwuid(mingw): initialize the structure only once

and:

> 0d1995a mingw: fix getcwd when the parent directory cannot be queried
> b8552a2 mingw: ensure `getcwd()` reports the correct case

both rely on a51dc28 (Win32: simplify loading of DLL functions,
2014-08-25), and must therefore be moved (at the moment, those commits do
not compile because of the absence of `DECLARE_PROC_ADDR`).

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho