git-trunk/modules/jira/client: Start IssueService

This patch implements the first part of the issue service for the Jira
API client, namely the issue searching functionality.

Change-Id: 91435319fc
Story-Id: 78913390
git-trunk/modules/jira/client: JSON tags for User

Change-Id: 86686c1c20
Story-Id: 78913390
git-trunk/modules/jira: Start ListActiveStories

Change-Id: 767fe49ab5
Story-Id: 78913390
git-trunk/modules/jira: Commit transitions

Change-Id: fa0f47d99b
Story-Id: 78913390