changed get_node_count and get_relationship_count to order and size respectively
changed get_node_count and get_relationship_count to order and size respectively

nicolewhite/py2neo,nicolewhite/py2neo,technige/py2neo,pombreda/py2neo,fpieper/py2neo,pombreda/py2neo,pombreda/py2neo,nigelsmall/py2neo,fpieper/py2neo,nicolewhite/py2neo,technige/py2neo,nigelsmall/py2neo,fpieper/py2neo,technige/py2neo