try a version w/o pymeta_helper
reformat build.ninja
clean up build rules, lint, etc.
Merge branch 'remove_pymeta_helper'
bump to version 0.4a
strip leading whitespace from variable values
update .gitignore
print description, not command, when a command has output but does not fail; also fix formatting
simplify path definition, clean up ninja.pymeta a bit
rewrite expand_vars() as a grammar
lint
clean up ninja.pymeta
fold ninja.pymeta into ninja_parser.py
add pycomp rule
bug fixes