Investigate issues with select() in Graph of Gods walkthrough in Titan

[amcp]

167 discovered a discrepancy but it is not clear if the discrepancy is related to JG or not.

[pluradj]

There was a bug in the Titan docs. It is corrected in the JanusGraph docs.

g.V(pluto).out('brother').as('god').out('lives').as('place').select()

should be

g.V(pluto).out('brother').as('god').out('lives').as('place').select('god', 'place')

[amcp]

Closing as the Titan docs were buggy. Thank you @pluradj