Implement the team engineering view in Launchpad

[dzin April 3, 2012] Slow progress, moving to 12.04 cycle.
[dzin April 17, 2012] Moved to backlog to determine status
[danilo May 09, 2012] Split out not-done items into https://blueprints.launchpad.net/linaro-infrastructure-misc/+spec/linaro-infra-misc-eng-views-pilot and marked as implemented.

Meta:
Acceptance: Upcoming work per team is reported on a new status page in Launchpad.
Headline: Prototype team engineering views have been released in Launchpad showing work items targetted to future milestones.

Work items:
[salgado] Get feedback from user testing of the mockups: DONE
[salgado] New method on ITeam to get all the SpecificationWorkItems/BugTasks (and associated data) needed to render the page: DONE
[mabac] Expose the new methods (above) on the API: POSTPONED
[salgado] Wrap workitems/bugtasks with a class that abstracts away their different APIs so that the page doesn't have to treat them differently: DONE
[salgado] Protect the new page with a feature flag so that we can iterate on it until it's ready: DONE
[salgado] Implement a non-table-based version of the page and test both on staging to see which one looks better: DONE
[mabac] QA bugs 973767, 973322 and 973443: DONE
Coordinate user testing with Dan (from the Launchpad team): POSTPONED
[mabac] Investigate how to implement the expanders to display the work items in the table: DONE
Implement the timeline at the top of the page: POSTPONED
[salgado] Make the new page work for people as well as teams: DONE
[salgado] Add graphical progress bars for work item and bug progress: DONE
[mabac] Implement a table-based version of the page: DONE