Reverse sort task updates just like requests updates (https://github.com/HubSpot/Singularity/blob/5476c5fdf6c672ae1729967e8b2b8753e865eb6f/SingularityUI/app/models/RequestHistory.coffee#L19-L20)
Task page redesign

(Similar to request page: https://github.com/HubSpot/Singularity/commit/9171a8aca7955eddc93e290e744ba1ccbd618531)