- Fixed the bug reported here:    https://savannah.cern.ch/bugs/index.php?33934   In TMultiGraph::Add(TMultiGraph*,Option_t *) method the loop on the input   multigraph was one step too long.
- Fixed the bug reported here: 
  https://savannah.cern.ch/bugs/index.php?33934
  In TMultiGraph::Add(TMultiGraph*,Option_t *) method the loop on the input
  multigraph was one step too long.


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@22379 27541ba8-7e3a-0410-8455-c3a389f83636

dawehner/root,dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT,bbannier/ROOT,dawehner/root,dawehner/root,dawehner/root,dawehner/root,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,dawehner/root,bbannier/ROOT