Improved watch task.
Moved preview to own view, as I have been threatening.
Added yeastmine query.
Added config variable for table-cell cut-off

This defines the maximum length of any string in a cell preview popover
before it is elided with an ellipsis.
More prefixes, more table fixes.
We have imtables.css now.

Currently we are working towards an uber-css file, which can be
decomposed into sass later.
Added a Move icon, chose a different check style.
Delay rendering so that we don't make unnecessary requests.
Removed lingering log statement
Added error rendering helpers