Fixed some compiler warnings

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@7590 b45a01b8-16f6-495d-af2f-9b41ad6348cc
Fixed initial fill of the contact list in message composer when only trusted people is checked.

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@7591 b45a01b8-16f6-495d-af2f-9b41ad6348cc