Use dataTables instead of bootstrap-table PMT #96080

Adds back multi-column sorting as well as configurable columns.
On project page: don't show milestones that don't have an action item
Merge pull request #132 from nikolas/project-milestones-fix

On project page: don't show milestones that don't have an action item
Merge pull request #131 from nikolas/datatables-dashboard

Use dataTables instead of bootstrap-table PMT #96080
Django 1.7c3
Merge pull request #133 from nikolas/django-1.7c3

Django 1.7c3
Fix bug in add trackers form (PMT #96360)

The tracker item created wasn't actually getting add_resolve_time called
on it, so there was no time added. I've added a get_resolve_time()
function to action items, making this easier to test.
Merge pull request #134 from nikolas/fix-add-trackers-bug

Fix bug in add trackers form (PMT #96360)