revert: rewrite help summary New users have a tendency to mistake 'revert' as the command to use to check out old revisions. They also occasionally mistake revert for a generalized undo (compare rollback). This version intentionally aims to avoid mentioning 'earlier' and thus intentionally no longer alludes to the (secondary) -r behavior (which in fact is not actually limited to 'earlier'). Instead, we mention checkout state, to convey that we can restore things to the way they were when checked out.

extensions: make disabled()/disabledext() load prebuilt index if available __index__ contains a dict of {name: desc} of all extensions.

setup: add command to generate index of extensions It generates prebuilt index of all extensions, which will be used by frozen exe when running 'hg help extensions'. Now py2exe invokes this command automatically.

sshrepo: fix addchangegroup's signature Make it mirror the usage found in localrepo.push. This should only affect pushes to pre-unbundle ssh servers.

subrepo: be more careful with deletions of .hgsub and .hgsubstate (issue2844) We shouldn't try to process subrepos if .hgsub isn't present and we should remove .hgsubstate if .hgsub is marked for removal.

patch: dot not ignore hunk of files marked as 'deleted' git 'deleted' flag was processed unconditionnally and the file removed even if the related hunk was not matching.

patch: fix patchmeta/hunk synchronization in iterhunks() Synchronizing on bfile does not work on file removal where bfile is /dev/null. We match items on afile or bfile instead. The incorrect code makes iterhunks() to emit patchmeta and hunks separately in some cases. This is currently hidden by applydiff() being too tolerant when processing patchmeta, and will be fixed later.