- Don't define the queries before possible early returns
- Check for the presence of the href attribute in the queries, instead of later
on iterating on the selection
- Add two edge-cases to the tests
- Use EachIter instead of Each, if only to avoid the lambda
Some websites are using images of O(10kB) when not )O(100kB) for their
favicons. As miniflux only displays them with a 16x16 resolution, let's do our
best to resize them before storing them in the database. This should make
miniflux consume less bandwidth when serving pages, for the joy of mobile users
on a small data plan.
Of course, images that already are 16x16 aren't resized.
