Log Message:
Update to 2.3:

This is a regularly-scheduled feature release with numerous improvements and \ 
bugfixes.

1.1. Core features
    help: add --keyword (-k) for searching help
    hgweb: side-by-side comparison functionality
    log: support --graph without graphlog extension
    push: accept revset argument for --rev
    merge: bookmarks will no longer automatically merge with unnamed heads or \ 
other bookmarks. Instead it picks heads with diverging bookmarks.
    introduce ChangesetsObsolescence concept (experimental)
    bookmarks: allow existing remote bookmarks to become heads when pushing
    bookmarks: pull new bookmarks from remote by default (backward incompatible \ 
change)
    bookmarks: delete divergent bookmarks on merge
    bisect: set HG_NODE when runing a command
    graft: allow -r to specify revisions
    graft: implement --log (issue3438)
    graft: remark on empty graft
    hooks: print out more information when loading a python hook fails
    identity: show trailing '+' for dirty subrepos (issue2839)
    incoming/outgoing: handle --graph in core
    merge: warn about file deleted in one branch and renamed in other (issue3074)
    Mercurial can now identify third-party extensions as sources of tracebacks
    outgoing: accept revset argument for --rev
    performance improvement on branchy repo: incrementaly update branchcache
    performance improvement on huge file tree: add a C function to pack the dirstate
    performance improvement for huge .hgignore: process regex with re2 bindings \ 
if available
    revset: add "diff" field to "matching" predicate
    revset: add "converted" predicate to find converted changesets
    revset: add "origin" and "destination" predicates, to \ 
get graft, transplant or rebase origins or destinations.
    revset: add "extra" predicate to match changesets extra fields \ 
(issue2767)
    revset: add pattern matching to "bookmarks/branch/extra/tag/user" \ 
predicated

1.2. Extension features
    acl: use of "!" prefix in user or group names
    children: mark extension as deprecated
    convert/svn: handle non-local svn destination paths (issue3142)
    convert: accept Subversion 'file:///c%3A/svnrepo' syntax on Windows
    fetch: mark extension as deprecated
    graphlog: feature is now into core
    histedit: new extension for interactive history editing
    hg-ssh: add read-only flag
    largefiles: add --all-largefiles flag to pull and clone (issue3188)
    largefiles: improve performance by batching statlfile requests when pushing \ 
a largefiles repo (issue3386)
    largefiles: no longer attempt to clone all largefiles to non-local destinations
    largefiles: optimize performance when updating (issue3440)
    largefiles: support revsets for cat, outgoing --large and revert
    mq: introduce qpush/qpop/qgoto --keep-changes
    strip: introduce -B option to remove a bookmark
    rebase: allow collapsing branches in place (issue3111)
    rebase: make --dest understand revsets
    rebase: drop the infamous --detach option: rebase now behave with --source \ 
and --rev as expectable. It may no longer add second parent to rebased changeset \ 
(backward compatible change)
    transplant: handle non-empty patches doing nothing (issue2806)
    transplant: manually transplant pullable changesets with --log

1.3. Fixes
    bisect: fix O(n**2) behaviour (issue3382)
    bookmarks: fix push of moved bookmark when creating new branch heads
    case insensitive file system can no longer be confused by -R on (issue2167)
    copies: one fix related to directory rename detection (issue3511)
    convert: check for failed svn import in debugsvnlog and abort cleanly
    convert: ignore svn:executable for subversion targets without exec bit support
    convert: keep branch switching merges with ancestors (issue3340)
    convert: make filemap renames consistently override revision renames
    debugrevlog: fix a bug with empty repository (issue3537)
    graphlog: don't truncate template value at last \n
    httprepo: ensure Content-Type header exists when pushing data
    largefiles: fix a traceback when addremove follows a remove (issue3507)
    largefiles: fix a traceback when archiving a subrepo in a subrepo
    largefiles: fix addremove when largefile is missing (issue3227)
    largefiles: fix addremove with -R option
    largefiles: fix exception hack for i18n (issue3197)
    largefiles: fix path handling for cp/mv (issue3516)
    largefiles: archive -S now store largefiles instead of standins
    largefiles: fix hg addremove when already removed largefile exists (issue3364)
    merge: do not warn about copy and rename in the same transaction (issue2113)
    mq: add ".hgsubstate" to patch target list only if it is not \ 
listed up yet
    mq: create patch file after commit to import diff of ".hgsubstate" \ 
at qrefresh
    pager: work around bug in python 2.4's subprocess module (issue3533):
    revlog: zlib.error are no longer sent to the user (issue3424)
    tag: don't allow tagging the null revision (issue1915)