revset: follow(nosuchfile) should give an empty set (issue3114)

subrepo: fix git status false positive (issue3109) It turns out there's a separate command to force git to look at file contents if the stat has changed.

mdiff: replace wscleanup() regexps with C loops On my system it reduces: hg annotate -w mercurial/commands.py from 36s to less than 8s, to be compared with 6.3s when run without whitespace options.

mdiff: split lines in allblocks() only when necessary These are only required to handle the --ignore-blank-lines case

annotate: support diff whitespace filtering flags (issue3030) splitblock() was added to handle blocks returned by bdiff.blocks() which differ only by blank lines but are not made only of blank lines. I do not know exactly how it could happen but mdiff.blocks() threshold behaviour makes me think it can if those blocks are made of very popular lines mixed with popular blank lines. If it is proven to be wrong, the function can be dropped. The first implementation made annotate share diff configuration entries. But it looks like users will user -w/b for annotate but not for diff, on both the command line and hgweb. Since the latter cannot use command line entries, we introduce a new [annotate] section duplicating the diff whitespace options.

setup: fix py2exe generation broken by c3a6ec304055 (issue3116) Py2exe is patching default distutils Distribution class. This patch ensures that the right one is taken when calling hgdist class.

mdiff: make diffblocks() return all blocks, matching and changed Annotate uses matching blocks not changed ones.

mdiff: extract blocks whitespace normalization in diffblocks() We want to reuse it in annotate for whitespace normalization.

merge with crew

setup: backout 8504699d1aa6 Change wasn't compatible with Python 2.x