mozilla/jpm — pull request #215 by fflorent (2014-11-01 13:27:39+00:00)
Title: Correct preference key in lib/preferences.js for #214

This commit make #214 work for me.
If you see the option set in addon-sdk, it looks like the real key is `keepOpen`:
https://github.com/mozilla/addon-sdk/blob/6de00b56c9ae5aa6f3b8632fb3dbdf300047a55f/lib/sdk/test/options.js#L20

Florent