Stripped out a big chunk of the session paginatoin code.
Some style changes to force scrollbars.
Extracted user pagination, mostly.
Fixed some height issues, and uncovered some lingering updatedisplay calls.
Some tweaks; faking users to test user overflow, and added scroll to that pane.
Changed structure so scrolling leaves the header behind at top.
Made the user gutter hold 3 users wide, letting us see a lot more people at once.
Merge pull request #192 from drewww/remove-pagination

Remove pagination