[fix bug 1070902][fix bug 1055647] Display action items of the Reps dashboard.

* Static template for the action items.
[fix bug 1065439] Template for viewing all the action items of a user.
Merge pull request #838 from akatsoulas/1070902-dashboard-action-items

Show action items in the dashboard.
Replace BUGZILLA_URL with get_bugzilla_url in failing tests.
Merge pull request #839 from akatsoulas/fix-tests

Replace BUGZILLA_URL with get_bugzilla_url in failing tests.
[bug 1064233] Fix mentor assignement to action item.
Merge pull request #840 from akatsoulas/fix-mentor

[bug 1064233] Fix mentor to action item.