prepare for beacons: separate computations from mutable values
implement beacon generation
remove old gc in favor of a top down invalidation strategy
integrate ticks to prepare for signal semantics, use lift instead of value, convert, and combine, make README less dangerous
shorten assembly AutoOpen statements
make code more readable
rename
use type syntax for bricks and program
implement signal processing bricks, inspired by Elm
implement and test Elm inspired foldp
comment
Merge branch 'master' into beacons