add a second lua way to avoid caching
Merge pull request #232 from muescha/patch-2

add a second lua way to avoid caching
Updated gendocs to work for multiple versions.
Adding empty event module.
WIP: Just messing around with some ideas for events.
WIP: writing some very weird code for events.
WIP: slightly better mousemoved code
WIP: more generic event taps
WIP: making event taps even cooler
Adding hotkey.keycodes table.
Redoing some docs.
Added event.postkey
Added key modifiers table to flagschanged event callback; closes #83.
Simplifying event.postkey