Log Message:
Update to 2.5:

This is a regularly-scheduled feature release.

1.1. Core features
    branchmap: improved performances
    bundle: add revset expression to show bundle contents (issue3487)
    dirstate: implement unix statfiles in C
    hgweb: add (Atom) subscribe links to the repository index
    hgweb: add "URL breadcrumbs"
    hgweb: add branches RSS and Atom feeds
    hgweb: secret changeset are excluded from html view (3614 )
    serve: use chunked encoding in hgweb responses
    pathencode: implement both basic and hashed encoding in C
    subrepo: append subrepo path to subrepo error messages
    validate: check for spurious incoming filelog entries
    hgweb: allow hgweb's archive to recurse into subrepos

1.2. Changeset Evolution

Major progress toward ChangesetEvolution were done.

    hidden changesets are now properly ignored by all commands
    a global --hidden flag is added to give access to hidden changesets
    rewriting a changeset but not its descendants is now allowed; this leaves \ 
unstable changeset behind
    we now detect *divergent* changesets. The third and last kind of \ 
obsolescence related troubles. divergent() revset is added
    a troubled() revset have been added
    branchmap for of *visible* and *served* changeset are now cached on disk. \ 
This is a major performance improvements
    performance improvements of most evolution related algorithm

1.3. Extension features

    color: add template label function
    convert: add config option to use the local time zone
    convert: add support for converting git submodule (issue3528)
    hgk: use Ttk instead of plain Tk
    inotify: don't fall over just because of a dangling symlink
    largefiles: fix revert removing a largefile from a merge
    largefiles: fix update from a merge with removed files
    largefiles: make log match largefiles in the non-standin location too
    largefiles: make update with backup files in .hglf slightly less broken
    largefiles: rename 'admin' to more descriptive 'lfstoredir
    rebase: performance improvements
    rebase: rebase set with multiple roots are now handled by the --rev option
    record: use patch.diffopts to account for user diffopts
    share: always set default path to work with subrepos (issue3518)
    zsh_completion: add completion of branch names

1.4. Fixes

    commands: 'hg bookmark NAME' should work even with ui.strict=True
    copies: do not track backward copies, only renames (issue3739)
    destroyed: keep the filecache in sync with __dict__ (issue3335, issue3693, \ 
issue3743)
    grep: don't search past the end of the searched string
    hgweb: properly returns 404 for unknown revision (instead of 500)
    histedit: proper phase conservation (issue3724)
    histedit: prevents obsolescence cycle (issue3681)
    hook: disable demandimport before importing hooks
    mq: don't fail when removing a patch without patch file from series file
    mq: fix qpop of working directory parent patch when not at qtip
    zeroconf: use port from server instead of picking port from config (issue3746)
    update: update to current bookmark if it moved out from under us (issue3682)
    bookmarks: show active bookmark even if not at working dir
    largefiles: let wirestore._stat return stats as expected by remotestore verify
    largefiles: adapt verify to batched remote statlfile (issue3780)
    largefiles: don't allow corruption to propagate after detection
    largefiles: don't verify largefile hashes on servers when processing statlfile
    largefiles: allow use of urls with #revision
    largefiles: fix commit when using relative paths from subdirectory
    largefiles: fix cat when using relative paths from subdirectory
    histedit: prevent parent guessed via --outgoing from being a revset (issue3770)
    rebase: delete divergent bookmarks on destination (issue3685)
    hgwebdir: use web.prefix when creating url breadcrumbs (issue3790)
    subrepo: allow skipping courtesy phase sync (issue3781)
    merge: .hgsubstate is special as merge destination, not as merge source
    merge: improved handling of symlinks