Replace ListView with RecyclerView

[veyndan]

ListView is basically deprecated and as we move to the future, RecyclerView should be used instead.

[psh]

Couple of things of note:

1. Nearby will be a lot easier to jump into - it's just a single linear list of known Place objects
2. There is no simple analog of the CursorAdapter in the world of RecyclerViews. This means there is a bunch of implied functionality behind the Contribution list view due to the ability to observe changed values out of the content provider.
3. There is a nice (rich) model object hiding in the code waiting to be extracted. Doing so should reduce coupling of classes & fix a memory leak (follow all the calls to get activity() & where it's getting used)

1 & 2 obviously meet the needs of the issue, but 3 would improve the code quality.