Updating master from sumoheavy

Was using Grasshopper.  Switched to using the newer agile API.  Ran all RSpecs and they pass.  Does away with the need to query rapidView.

I found two issues when trying to use jira-ruby to transition an issue:

1)  The example provided in the example.rb file does not work.  What one needs
is a list of available transitions given the current state of the JIRA.  issue.transitions.all does this.  It provides an array that
one can then look through to find the appropriate Id of the transition one wants to make.

2) Transition was using the default Base#save.  However this does not generate the correct URL.  It generates a URL in the form PUT  https://jira-hostt/rest/api/2/issue/13322/transitions/34 with a JSON payload.  What JIRA requires  is a URL of the form: POST https://jira-hostt/rest/api/2/issue/13322/transitions with the correct JSON payload.   This commit fixes this issue.