Fixes bug where importers were retaining state via AllTheImporters config obj.

AllTheImporters.get() returns a totally fresh config obj every time now. There are advantages
to importers keeping some state eventually, but not now since we don't dedupe. And even
eventually, it's very unlikely that that the config object is the right place to save this state.
Merge branch 'master' of github.com:total-impact/total-impact-webapp