Reintegrated from trunk: #752 (notifications sent several times) and #763 (configure this list broken when selecting a stop watch). At this stage ormstopwatch.class.inc.php are 100% aligned between trunk, 2.0.1 and 2.0

git-svn-id: http://svn.code.sf.net/p/itop/code/branches/2.0@2870 a333f486-631f-4898-b8df-5754b55c2be0