Parsing the Mapnik config files and processing shapefiles into a pyramid structure.
First cut at self contained vector tiles.
Hooked up the styles.  First look.
Can now mess with importance scaling at quad image layer level.  Will update interactively.
Offline layer now responding to importance scale changes.
Disabled culling logic if we're not doing culling.  Less spastic twitching from the quad tile layer if we have multiple textures.
New VectorDb format working.
Added icon manager.  Fixed tesselator (finally).
Changing data types if we've got a label on an areal or an areal that needs to be a linear and such.
Turning keepNorthUp back off didn't work right.
Merge branch 'develop' of https://github.com/mousebird/WhirlyGlobe into develop
Simplified the command line and wrote docs.
Merge branch 'develop' of https://github.com/mousebird/WhirlyGlobe into develop
Doc update
Missing some files
Missing xcode proj
Can now change tile sources on a running quad images layer.
Merge branch 'develop' of https://github.com/mousebird/WhirlyGlobe into develop
Can now change tile source in offline layer.
Can now change tile source completely.  Doesn't have to match the previous one.  Can change draw priority and color on quad layer.