From Jan-Fiete: critical bug fix "return string->GetString()" and some optimization for TGridJDL.
From Jan-Fiete:
critical bug fix "return string->GetString()" and some optimization
for TGridJDL.


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@41131 27541ba8-7e3a-0410-8455-c3a389f83636

dawehner/root,dawehner/root,dawehner/root,dawehner/root,dawehner/root,dawehner/root,dawehner/root,dawehner/root