Simplify renderer management
Refactor to sort renderables with zIndex
Add new examples to test loading with many vectors
Ported TiledVectorRenderer to renderer refactoring
Finish porting TiledVectorRenderer
Port PointRenderer
Compute TileRange in GeoTiling
Add base class for all VectorRenderer
Some cleanup
Fix RasterOverlayRenderer
Fixes after MIZAR integration
Fix getLevelZeroOverlappedTiles
Fix level zero generation with HEALPix layer
Provide access to bucket parameters from geometry
Disable z-test while point sprite rendering
Modify ConvexPolygonRenderer to render textures with custom geometries(more than 4 vertices)
Fix index bug
Modify up vector setting on north for AstroNavigation
   * North isn't always aligned with z-axis anymore
Merge branch 'renderer-refactor'