• core/authentication_api.php
  (auth_get_current_user_id): store an return an int, not a string (in case
  we end up with more === comparisons)

git-svn-id: http://mantisbt.svn.sourceforge.net/svnroot/mantisbt/trunk@2039 <a class="text" href="/?p=mantisbt.git;a=object;h=f5dc347c">f5dc347c</a>-c33d-0410-90a0-b07cc1902cb9