From Philippe:

This patch resolve a few issues when loading a library implementing an STL
container after opening a file containing an instance of this STL container.
Depending of the circunstances this lead to either an infinite recursion or
an incorrect collecton proxy.

This patch also resolves completely the issue related to using namespace
statement. Aka you can now properly do:
       using namespace MySpace;
       gROOT->GetClass("ClassWithingMySpace");


git-svn-id: http://root.cern.ch/svn/root/trunk@10947 27541ba8-7e3a-0410-8455-c3a389f83636