Use Event.js instead of MicroEvent

Updated Hand and Interaction to reflect change from MicroEvent to Event.js

Signed-off-by: Gideon Farrell <me@gideonfarrell.co.uk>
main.js: require lodash

Hadn't included lodash in dependency list

Signed-off-by: Gideon Farrell <me@gideonfarrell.co.uk>