Allow pulling grid data from the past.

Add grid frame API.

Add basic API for point retrieval.

Clean up socket receive.

Clear Datomic Txn Queue on each interval pass. Animate faster.

Make grid rects smaller with subdued background.

Clean up CSS "animation" and tx update message type.

Update startup scripting and readme.

Save to unwritten grid spaces.

Add emacs files to gitignore.

Pseudo-animate grayscale grid colors with js timer.

Updates to Datomic now color the canvas red.

Black canvas with simple grid set up.

Clean up 'send' logic, only pull txns once per loop.

Working Datomic transaction polling with websockets.