When importing flats for the first time, their status was not correctly
set, resulting in flats not being marked as ignored when they should be.
This is a bug introduced with the fix for issue #31, now fixed.
* Init Webpack / Babel / etc setup.
* Build the app using Vue, Vue-router, Vuex.
* i18n
Some backends changes were made to match the webapp development:
* Return the flat status as a single string ("new" rather than
"FlatStatus.new")
* Completely switch to calling Weboob API directly for fetching
* Use Canister for Bottle logging
* Handle merging of details dict better
* Add a WSGI script
* Keep track of duplicates
* Webserver had to be restarted to fetch external changes to the db
* Handle leboncoin module better
Also add contributions guidelines.
Closes issue #3
Closes issue #14.
