Update comments to work in latest Doctower build.
Introduce extra variable for clarity.
Fixing dependent paths to match Git repository structure.
Add .gitignore.
Use git submodules and registry entries.
Clean up whitespace.
No more Gwydion, set up test to build.
Update to current dynamic-binding.
Don't build an executable for peg-parser.
Merge commit '30a450b01c562de06feda007e0a8f6e1dcd1c7e3'

Conflicts:
	Makefile
	parser-definers.dylan
	parser-rules.dylan
	pl0-grammar-test/grammar-module/gd-module.dylan