changed resources are saved to the level that is first called, e.g.:

gEnv->SetValue("Gui.ForegroundColor=grey")
gEnv->SaveLevel(kEnvUser)

saves this resource in the ~/.rootrc file. Saving to kEnvLocal would
write to the file ./.rootrc and to kEnvGlobal to $ROOTSYS/etc/system.rootrc
(when the user has the permission).


git-svn-id: http://root.cern.ch/svn/root/trunk@6855 27541ba8-7e3a-0410-8455-c3a389f83636