CRM-12923 - Add routing/UI for non-functional button, "Add Job"
CRM-12923 - Views.StandardForm:
 * Generalize "reset" so that it works with new or existing models
 * Use Marionette-style triggering
 * Display validation errors
CRM-12923 - Tweak validation error
CRM-12923 - Correctly set HRJobCollection tied to "hrjob:add" screen

There are two paths for reaching the "hrjob:add" screen -- clicking the
button in the UI or loading/reloading a URL with "#{cid}/hrjob/add" (ie
using the "router").  The previous version with the button but not the
router.
CRM-12923, CRM-12943 - Implement "Add Job" form
Merge pull request #53 from civicrm/master-addjob

CRM-12923, CRM-12943 - Implement "Add Job"