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.