listdir: add support for aborting if a certain path is found This lets us bail out early if we find '.hg', letting us skip sorting and bisecting for it.

osutil: fix some braindamage - entkind returns -1 on failure - compile if AT_SYMLINK_NOFOLLOW is missing - avoid fullpath overflow

dirstate: improve performance for building _dirs

osutil: major listdir cleanup

hgweb: let the web graph cope with low revisions/new repositories (issue1293)

hgweb: Respond with HTTP 403 for disabled archive types instead of 404 This makes it easier for clients/users to distinct between supported but disabled and unsupported archive types.

coal/paper: fix error page markup to show navigation again

merge with -stable

osutil: proper error checking and reporting

run-tests.py: fix the check for the hg installation with -jn (n > 1)

inotify: add client code for long pathname handling

dirstate: use the right variable (f, not ff)

osutil: proper error checking and reporting

hgcommand.vim: refer Vim7 users to vcscommand plugin

make test-mq-qdelete work reliably (issue1180) if after a and b has been applied, their hash starts with c, then the test would fail (because there would be a rev c which would be seen as "applied") so probability of failure would be 2*1/16.

Add support for Bugzilla 3.0 series to bugzilla hook. The only difference is 'fieldid' in table 'fielddefs' got renamed to 'id' for 3.0.