testing: add hypothesis fuzz testing
Hypothesis a library for adding fuzzing over a range of structure
data to your test suite: http://hypothesis.readthedocs.org/en/latest/
This adds the ability to build tests using Hypothesis within the Mercurial test
suite. New tests and fixes using this helpers comes in later changesets.
Mercurial's documentation is kept in reStructuredText format, which is
a simple plain text format that's easy to read and edit:
http://docutils.sourceforge.net/rst.html
It's also convertible to a variety of other formats including standard
UNIX man page format and HTML. You'll need to install Docutils:
http://docutils.sourceforge.net/
Use the Makefile in this directory to generate the man and HTML pages.