added org.eclipse.team.svn.sources to contributor project

Change-Id: I0953804368efd7d6f36eaf3473b8d9a947379387
Signed-off-by: Lorenzo Bettini <lorenzo.bettini@gmail.com>
increased site.suffix to 4.4 in contributor project

Change-Id: I479cadb337677c90752a1045b6dfbdccc6c31f65
Signed-off-by: Lorenzo Bettini <lorenzo.bettini@gmail.com>