New in version 0.2: * rawCairo function for creating primitive diagrams from raw Cairo code * line join, cap, and dashing attributes * bouding box visualization functions for debugging * new padding and positioning combinators * PDF, PS, and SVG output * experimental tree layout * paths, polygons, bezier curves * create diagrams from text * render on top of arbitrary background images * depend on colour package instead of built-in colors * new examples: snellen, wordcloud, dragon * emptyPath and pathConcat