Use AbstractNode#normalize_system_path to obtain image target path
Merge plantuml/generator.rb into plantuml/extension.rb
Correct error message when diagram generating tool could not be found
Replace define_processors class generation method with regular classes that can be extended
Write images to imagesoutdir or outdir if specified
Add DiagramSource module to allow overriding of DiagramProcessor defaults
Avoid modifying original attributes hash
Add .yardopts file
Restructure project. Extension api is now under API module.
Documentation work in progress.
Rename Asciidoctor::Diagram::API to Asciidoctor::Diagram::Extensions
More documentation
Bump version number, add changelog entries
Update PlantUML to revision 8004
Merge pull request #44 from pepijnve/master

Introduce documented extension API