attempts to add ACORN.
adds acorn and starts editing pulsar
adds double pulsar.
refactors intensely, a work in process
adds toggle for play/pause.
adds play/pause button to toggle game

Disables CSS BonBon buttons which inconsistently triggered
`onclick`.
Adds (unused) buttons for preset configurations.
removes gilded_heart.js
fixes config buttons on the DOM

uses `configLoader` to return a closure (or function) which 1) pauses
current game state 2) overwrites the current grid w/ pattern 3) visually
renders the new config on the grid

binds the above function to the appropriate config buttons' .onclick
properties
tries to sync before checking out flushing-date
refactors the 1-step button
Merge branch 'flushing-date'