dropbox OAuth workflow

[jaybee]

Wouldn't it be nice if you could run

rake setup:dropbox

and it would prompt you for the right things and write out a config file?

Maybe also

rake setup:dropbox:db

to store the creds in the DB instead?

[murraysum]

Have at it: https://github.com/murraysum/chimpdoc/pull/1/files an initial concept implementation. Feel free to comment or suggest ideas 👍