Transition after 10ms for Firefox to animate

With a large container, Firefox does not wait long enough for the
rendering to happen before adding the "in" class. Increasing the timeout
to 10ms empirically ensures the animation always occurs.
Show task status and updated timestamp in list

* Collapse host and ports to a line underneath the main task row.
* Add "Status" and "Updated" columns to task list.
* "Status" is one of "Started" and "Staged".
* "Updated" is the timestamp related to the current status.
* Columns in the task list are now sortable forward and in reverse.
Merge pull request #150 from mesosphere/task-list-status

Task list status