2.8.5:

* Windows Build:
- ustring.h: Tag npos with GLIBMM_API, in order to
  dllexport it on win32. Bug #332438.
- Updated MSVC++ build files and README, for MS Visual Studio 2005.
(Cedric Gustin)
* gmmproc code generator:
- WRAP_METHOD() Take an extra optional argument: deprecated depractiontext -
 so that we can insert the appropriate doxygen tag in the documentation, where
 the C documentation does not do it for us.