The fixes by Philippe were not portable. On Windows, one cannot have a global variable

in a shared lib referenced outside the shared lib.
Two new functions have been implemented in parse.c
void G__settemplevel(int val)
void G__clearstack()


git-svn-id: http://root.cern.ch/svn/root/trunk@3105 27541ba8-7e3a-0410-8455-c3a389f83636