Upgrade version of AwesomeWebsocket

- The version indicated below represents the next version of
  AwesomeWebsocket.  Version 0.0.26 of AwesomeWebSocket is not yet released!!!
  If the version of AwesomeWebsocket gets rev'd to address this bug:

  https://code.google.com/p/chromium/issues/detail?id=425236

  I suggest we use that version for core-custom-event-client
  to prevent memory leaks in Windows.  Pull request for AwesomeWebSocket:

  https://github.com/glg/awesome-websocket/pull/7