Steam: fixed contact management functions

git-svn-id: http://svn.miranda-ng.org/main/trunk@9099 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
and MSVC 2010 project

git-svn-id: http://svn.miranda-ng.org/main/trunk@9100 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c