prepare release

Add changelog and cleanup code

update documentation

prepare for tagged release

only run if point changed

this way we don't run for /every/ command, just actual movements. Should
work for movements of all kinds, not just line or char jumps.

skip ensuring font-lock for now

it was causing horrible lag, maybe we can just ignore and let the major
modes do their thing

remove version, get it from git

compile

fix memory leak by removing timer action

compile