Patch from Philippe: This updates increase the support for const data members (the existing std::string special cases needed to be updated).  It also explicitly disable I/O for data members which are references.
Patch from Philippe:
This updates increase the support for const data members (the existing
std::string special cases needed to be updated).  It also explicitly
disable I/O for data members which are references.


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@5458 27541ba8-7e3a-0410-8455-c3a389f83636

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