add preliminary version of v2 style
rename type => symbolizer
move geometry type filter to the actual filter array as $type
rename layer => source-layer
Move symbolizer-specific properties to their own object
move prerender to its own object
change not in set operator from ~= to !in
whitespace
rename prerender to rasterize
add way for referencing other layers
rename to the actual names
add composite render type
add information on variable naming
json compatibility
add raster
shorten build message
try another format
remove unicode chars
add sources as separate entity
Require @ prefixing for variables