fix for cython build error on ubuntu 14.04 as described in issue #1523
fix for cython build error on ubuntu 14.04 as described in issue #1523

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