Pre-refactor of the tile objects

This is a mark of the early experiments before a large commit which moves the simple scripts into a Scala object structure and deletes a lot of the early work.

It is not expected to be useful to anyone other than the early developers...

Preliminary experiments 2

Primarily contains early spark experiments which are about to be dropped.

This is not intended for use and many things are about to be deleted. This version exists only to allow us to dig out early test stuff should we ever wish

Preliminary experiments

Contains spark jobs, vector tile server, and server side node/mapnik renderer of vector tiles in very preliminary test state.

This release is made because the next steps will involved code refactoring which will discard a lot of the experiments that are not being carried forward. It is foreseen though, that we might need to resurrect some of those ideas at some point in the future, so this release serves only to simplify that process.

This code is not intended to be used by anyone other than the original author and the quality, reusability etc reflect that.