Trying to make this area more useful

+ Autoenv is confusing, so I'm removing references to it.
+ Moving requirements.txt individually to folders, as I think I'm moving towards putting all of this on heroku.
heroku setup add/remove

My general rule for heroku here is it is ok to put on heroku if:
  + app has no database
  + app has database and does authentication and authorization

Generally not OK to put on heroku if
  + app is single user and has database
  + app has databse doesn't both authenticate and authorize.
Let's have just one version of messager

Set up the database in the environment. It is a one line
change to swap from pgsql to sqlite.
links to deployed heroku apps.