Rendering basic spreadsheet
Added horizontal core-header panel which scrolls with main content
Started work on vertical-header-panel; vertical box shadow working
pre branch
Scrolling just about works as desired
Horizontal bar always stays aligned with the main scrollable area no matter how big the vertical scroll bar is
Encoding possible tick states into a single letter until status icons are available
Headings positined correctly
Improved tick name alignment on narrow screens
Rows alternate grey and white, unless scrollArea narrower than screen
Fixed vertical scroll mis-alignment
Added blue menu bar, created college dictionary
Put card in website (but not integrated with group id)
Lazily adding empty tooltips
tooltips display something useful, work around for tick status compression with narrow  windows
horizontal drop shadow
vertical drop shadow
Click forename/name/college columns to sort
Fixed user details alignment
Searching and sorting works, but not both