Add support for commenting for reply instead of non-threaded messages

Commenting will now be the default action when msg.sending, providing
the needed info has been captured from the stream event.

Script authors can force a new message by modifying the response
envelope: msg.envelope.newMessage = true; msg.send …

This requires the new comment method in node-flowdock 0.6

Fixes #39
Merge pull request #40 from brentc/commenting

Add support for commenting for reply instead of non-threaded messages
Bump version
Update README.md

Fix incorrect reference to HEROKU_HOSTNAME to HEROKU_URL. See: https://github.com/github/hubot/issues/440
Update user data when user changes names

When a user changes his/her Flowdock account Nick, the only way to update the user data is to manually modify the users object. This affects scripts such as roles, karma, etc. that attach data to user objects based on the associated names. These changes add a check for the 'user-edit' stream event and remaps the user object in the brain.
Merge pull request #42 from Hammertime38/master

Update user data when user changes names
Merge pull request #41 from russplaysguitar/patch-1

Update README.md
Log authentication errors, updated README
Added room to the data object created from the flows. This allows updated nicks to get into the hubot brain if the nick was changed while hubot was offline.
updated room to be current time in millis so it will be unique for each time Hubot starts
Merge pull request #45 from febbraro/master

Added room to the data object created from the flows.
Bump version
Revert "Merge pull request #45 from febbraro/master"

This reverts commit 86024b2ecc467a660fbacb6e373c5a263e7fca9b, reversing
changes made to 298e2907d34a19061404b37742affe128c1694bb.
Bump version
Update user nicks that are changed while hubot is offline

If anything, this adds a minimal amount of extra work to the launch process, but because robot.brain.userForId is abstract to the point that it only knows about user.id and options.room (for some odd reason), this puts the responsibility on the flowdock adapter to update the user's name if necessary.
Merge pull request #46 from Hammertime38/master

Update user nicks that are changed while hubot is offline
Bump version
Add raw payload export to recieved messages