1. Allows for multiple "styles" per vector source.
2. Updated the mapbook to reflect the change.
3. Moved the results layer to the top to ensure z-order goodness,
   also added a new "hot" layer for rendering hover-over styles
   with the reuslts layer.

1. Put the highlight functions into wrappers so the underlaying implementation
   can be changed into the future as is necessary.
2. There was a bug with zoom-to-extent that has now been fixed.

Conflicts:
	src/gm3/components/layers/vector.js
	src/gm3/components/map.jsx

1. Needed to clean up some linting erors.

2. Layer Z indexing now happens during msAction.add, moving it
   out of the Mapbook parser.

3. md5 is used to hash filters for easy comparison.

1. Now using createFilter to create filter functions.
2. Added new "transforms" to allow data to be forced
   to a particular format on injest. Specifically useful
   for forcing particular columns to strings or numbers.