Changelog for diagrams-0.2.1.3

Version 0.2.1.3: May 30, 2010 * update cairo version range to allow 0.11 * include example files in distribution tarball Version 0.2.1.2: March 18, 2010 * widen some dependency version ranges to include new releases that still work. * remove some redundant imports. Version 0.2.1.1: September 25, 2009 * builds with colour-2.3.1, so update allowable version range Version 0.2.1: September 24, 2009 * new shape primitive 'arc' * multi-page PS/PDF output (Ganesh Sittampalam) * new grid layout combinators (Ganesh Sittampalam) * new primitives for generating rounded rectangles and rectangular paths * more path functions, and new path layout 'positionAlong' * various bug fixes and minor improvements Version 0.2: January 31, 2009 * 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