3 GXS BugFixes:
 - GxsCircles was created twice, removed second.
 - Modified Gxs DataLayer to always write AuthorId, modified retrieval to clear string if NULL.
      This originally caused AuthorId to filled with GroupId.
 - Fixed rsgxsnetservice to use mInternalCircle, rather than mCircleId.



git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@7291 b45a01b8-16f6-495d-af2f-9b41ad6348cc