move config to ENV; add procfile for heroku
update gemfile to remove warning
bug fix and nil guards
add in gemfile lock for heroku
update tinder & trollop
support for card (un)archive events
README update
add trello key/token info to README
nicer README layout for github
message prefix
same-column move events were incorrectly caught as archive :-/
Merge pull request #2 from tjmcewan/master

rudimentary heroku support