added dummy names to unnamed nodes in Cypher queries (also, cheekily updated .gitignore)
changed "foo" and "bar" to "dummy1" and "dummy2"
PEP8 fix
added note to explain (dummy1) and (dummy2) node names
Merge branch 'master' into 2859-named-nodes
fixed PEP8 violation
Merge pull request #97 from onefinestay/2859-named-nodes

added dummy names to unnamed nodes in Cypher queries