locally render chat messages instead of waiting until server acks them
don't bother storing echo_id in localStorage, could actually hurt future messages if there's a collision
send echo for directed_message too
sign messages using the openpgp worker if possible, hopefully the callback style still works on browsers without workers
always use web worker for PGP operations; TODO: proper ack of PGP encrypted messages vs. just returning a copy of the sent message, ensure broadcast works
upgrade underscore to 1.6.0 and backbone to 1.1.2, send receipts that don't overwrite the data blob
store unencrypted copies of PGP encrypted messages, reduces weight of PGP encrypting a message to ourself
store local messages more accurately
improve local rendering, fix a bug in pgp encryption that arose after web workers
further improve accuracy of local render
fix spinner position, further improve accuracy of local rendering, simplify some things
remove some logging