merge with crew-stable

bisect: only complain when nothing can be done

imported patch test-check

hgweb: Serve raw non-binary files as text/plain Previously these were served as application/octet-stream usually making browsers download them as files though they can be displayed inline just fine. This is useful to refer to e.g. /project/raw-file/tip/README.

allow committing a removed directory fix issue1089

notify: fix diffstat printing notify.diff() keeps line breaks in the diff buffer before calling patch.diffstat(). patch.diffstat() however adds another line break when feeding diffstat input. The added extra empty line leads to erroneous diffstat output. This fix removes the line breaks in notify.diff() and adds it back to print them.

merge with crew

make normalize() work when cwd != repo.root

convert: document source and sink identifiers, fix error message

Fix normalize fail on non-lowercase filename (Issue1273) regression introduced in 1e2850ed8171

fix changegroup.notify hook broken by fb42030d79d6

dirstate: explain why appending instead of os.path.join() is safe

performance: normalize self._root, avoid calling os.path.join() in dirstate In dirstate, self._join() might get called a lot. Instead of calling it we create self._rootdir and we then only need to append the filename.

performance: do not stat() things when not required Ignore unknown files if we don't need them (eg in hg diff). It slows things down a little bit for big trees (kernel repo), since _join() is called for each file instead of for each directory. fix issue567

Merge with crew-stable