Syntactic sugar.
Huge bunch of macros and improvements to book class.
Size fixes.
Images should respect their width.
Correct substitutino of endings.
Glue height needs to be a length unit.
There was an easier way.
Fixes to the verbatim environment; allow shaper to tokenize differently.
Fixes #2. (I’m not sure about #3)
Allow breaking at current horizontal position, add a showframe command.
Make frame debugging prettier.