Task list status

* 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.

![screenshot 2014-02-11 17 52 08](https://f.cloud.github.com/assets/29612/2144534/b2cdba2c-9389-11e3-9103-6e60d9d82379.png)