trying to behave in here and use 2 spaces instead of 4 ;)
moved invite_code to env var
don't render the sign-up form at all if invite code is incorrect
no default value for invite code
this should fix the test #84
ENV statements need a value
Improved ws-reconnecting.js send() error handling

  WebSocket is already in CLOSING or CLOSED state. convos-f3cb4173e1b5b54a879ba8f8335b7b95.js:456
    ReconnectingWebSocket.send convos-f3cb4173e1b5b54a879ba8f8335b7b95.js:456
    $input.send convos-f3cb4173e1b5b54a879ba8f8335b7b95.js:498
    (anonymous function) convos-f3cb4173e1b5b54a879ba8f8335b7b95.js:496
    handleObj.handler convos-f3cb4173e1b5b54a879ba8f8335b7b95.js:26
    x.event.dispatch convos-f3cb4173e1b5b54a879ba8f8335b7b95.js:3
    v.handle convos-f3cb4173e1b5b54a879ba8f8335b7b95.js:3

  So it seems that send() failed badly when the other end shut down the
  connnection.

  .---------------------------------------------------------------.
  | 3 | Connection Close Frame (Opcode 8, mask) |  0 | 4:23:52 PM |
  | 2 | <div class="pong"/>                     | 19 | 4:22:52 PM |
  | 1 | <div class="ping"/>                     | 19 | 4:22:52 PM |
  '---------------------------------------------------------------'
Let the javascript send ping instead of the server
Fix format_conversation(...)
Fix javascript typos
doc for CONVOS_INVITE_CODE
Fix resending buffer over websocket
Fix typo (thanks DominikTo)
Let's not be so eager to refresh()
Made pong.html.ep smaller
Fix adding nicks to the list on chat
Add links to README #75
Merge pull request #84 from DominikTo/env-invite-code

Moved invite code to env var
Don't hardcode tmpdir
Prepare for 0.5