Invisible Ink v1.1.0

• Added option for rendering solid blocks in place of empty glyphs
• Added option for using "donor" font
• Added option for including only crucial glyphs (e.g. for characters needed for the first sentence on the page)
• Implemented unit and visual regression tests
• Added Makefile
• Added utility script for rebuilding example pages

Invisible Ink v1.0.2

Initial release