CRM-12923 - Display message about no jobs (with "Add new" link)
CRM-12923 - Fix bug with post-save warning message
CRM-12923 - jobtabapp/tree - Clicking job name should go to the "General" screen (since the summary is empty)
CRM-12923 - jobtabapp - Rework initial page view (with no route)

 * When there are no jobs, leave the empty-route and display an error
 * When there are jobs, redirect to the first
CRM-12923 - Hide job tree when there are no jobs
CRM-12923 - Fix placement of footer
CRM-12923 - Move message ("There are no jobs...") so that it takes full width
Merge pull request #70 from civicrm/master-default-screen

CRM-12923 - jobtabapp - Refine styling/layout of default screens