prettify tests: fix trailing whitespace

workaround for bug in tidy

clear all files when updating docs

fix setting version in __main__

chore: update deps

test prettifier: fix IndexError with certain triple-quoted strings

test prettifier: fix single line triple-quoted str

test prettifier: only write file if content is modified

test prettifier: do not remove every language injection comment

add XML prettifier for tests

add utidylib dep

c3p0: don't hang when no commits found

c3p0: publish all commits when no stored last published commit

sphinx_config_obj: ignore __DYNAMIC_DEFAULT suffix

sphinx_config_obj: fix handling of options without default value

Initial commit