Fix operator< for scopes
Fix operator< for scopes

AmeBel/atomspace,misgeatgit/atomspace,rTreutlein/atomspace,misgeatgit/atomspace,AmeBel/atomspace,misgeatgit/atomspace,rTreutlein/atomspace,misgeatgit/atomspace,rTreutlein/atomspace,misgeatgit/atomspace,AmeBel/atomspace,rTreutlein/atomspace,rTreutlein/atomspace,AmeBel/atomspace,AmeBel/atomspace