gendoc: automatically create help for default extensions. Adds a section in the hg.1 manpage and corresponding hg.1.html file. Each extension is listed with its module docstring, followed by the commands defined by that extendsion. Creates help for extensions by extracting doc strings from the extension modules and its commands.

gendoc: dedent documentation from docstrings When getting docstrings from the source they are indented to look good in the code. This indentation interferes with how the text is parsed by rst. Therefore this indentation is removed.

extensions.load: return module Makes extensions.load return the module that it has loaded. This is done so that callers can get information on this module, which e.g. can be used for generating docs.

help: different section separators Changes the characters used as section separators, so different ones are used for module docstring and command docstring. This is done because the section from the docstring will be at different levels in the restructured text output, therefore different symbols have to be used.

gendoc: add subsection for each command

gendoc: move section commands to module scope

mq: mark string for i18n