Upgrading tire to 0.6.0 to fix elastic search serialization issue.

Items from Elastic Search were not being properly serialized and
could not be used in a rabl template (all attributes were null).
Simply upgrading tire fixes the issue.
Merge pull request #2770 from waldenraines/upgrade-tire

Upgrading tire to 0.6.0 in order to fix serialization issue.
Adding model, api, cli for nodes
cassette update