Made comments more relevant.
Correct env.sample.py
Removed unrequired JSONPHandler class.
Updated Reconnecting Web Socket Library to latest version.
Removed unrequired imports from serverhandlers.py
Contact Point server will now return events from the server. E.g. tag_placed, tag_removed. Whenever there is a tag involved, the tag_id will also be returned. Future uses: reader_connected, reader_disconnected, etc.
Replaced names of JS triggers. Renamed card_id to tag_id.