patchbomb: minor refactoring of mbox functionality, preparing for move This allows reuse of the mbox functionality but causes minor changes in the patchbomb console output when writing to a mbox.

tests: run check-code with warnings and maintain a whitelist check-code has fine warning checks, but they are a bit noisy and nobody used them. Now the warnings will be run in the test suite, where a list of accepted warnings will be maintained. Those who introduce or touch a line with a warning will now have to update the whitelist ... or fix the warning.

tests: convert test-check-code-hg.py to .t

test-keyword: use inline doctest syntax

merge with stable

tests: test-largefiles.t should not try to escape from $TESTTMP

largefiles: file storage should be relative to repo, not relative to cwd Revealed by the test in 1fd126cd2d91.

clone: don't save user's password in .hg/hgrc (Issue3122)

posix: add extended support for OS X path folding OS X does the following transformation on paths for comparisons: a) 8-bit strings are decoded as UTF-8 to UTF-16 b) undecodable bytes are percent-escaped c) accented characters are converted to NFD decomposed form, approximately d) characters are converted to _lowercase_ using internal tables Both (c) and (d) are done using internal tables that vary from release to release and match Unicode specs to greater or lesser extent. We approximate these functions using Python's internal Unicode data. With this change, Mercurial will (in almost all cases) match OS X folding and not report unknown file aliases for files in UTF-8 or other encodings.

dirstate: use util.normcase to build foldmap