resque: updated Procfile.dev for resque
created .env.dev.example and moved Procfile.dev to example
heroku: updating gitignore for heroku's procfiles
resque: ugh version 2.0.0, pour que!!
resque: added resque/tasks to Rakefile
resque: added redis/resque initializer

* moved devise-async to resque initializer
heroku: abstracted per-env configuration to env vars
resque: added resque web interface