avoid KeyErrors for partial seed configs
convert layers to string before splitting to handle numerical layer names
removed old origin option from cache example
update cache.grid explaination in docs
removed old notes for configuration changes in 1.2.0
update image.encoding_options.quantizer docs for Pillow
fixed encoding issues when piping wms-capabilities with umlauts
do not keep min/max_res of one source when other sources have no min/max_res