Log Message:
Update to 2.1.1:

This is a regularly-scheduled bugfix release.
    bdiff: fix malloc(0) issue in fixws()
    bugzilla: stop XMLRPC requests from requesting gzipped responses
    bundlerepo: bundle repos should be non-publishing (issue3266)
    cmdserver: invalidate the dirstate when running commands (issue3271)
    context: make workingctx.forget() really warn about untracked files
    convert: ignore blank lines in mapfiles (issue3286)
    convert: tolerate spaces between splicemap parent ids (issue3203)
    convert: use splicemap entries when sorting revisions (issue1748)
    dirstate: filecacheify _ignore (issue3278)
    fetch: use update rather than clean when updating (issue3246)
    forget: show warning messages for forgetting in subrepo correctly
    graft: use proper revisions for copy detection (issue3265)
    import: handle git renames and --similarity (issue3187)
    largefiles: check whether specified patterns are related to largefiles strictly
    largefiles: don't break filesets
    largefiles: only cache largefiles in new heads
    largefiles: use repo.store.createmode for new files in .hg/largefiles
    localrepo: clear _filecache on rollback (issue3261)
    localrepo: reset _phasesdirty flag after writing
    localrepo: use 'changectx.dirs()' in 'status()' for directory patterns
    log: fix --follow FILE ancestry calculation
    log: remove caching of all visited revisions (issue3253)
    log: restore cache used by --copies
    mdiff: adjust hunk offsets with --ignore-blank-lines (issue3234)
    mq: fix qapplied --last and qprev documentation (issue3282)
    mq: fix qnext when all remaining patches are guarded
    mq: make qimport --push push all imported patches (issue3130)
    mq: make qprev return the previous applied patch (issue3245)
    mq: restore _branchtags() fast path (issue3223)
    patch: fix fuzzing of hunks without previous lines (issue3264)
    patch: fuzz more aggressively to match patch(1) behaviour
    pull: backout change to return code
    scmutil: update cached copy when filecached attribute is assigned (issue3263)
    setup: handle output from Apple's Xcode 4.3 better (issue3277)
    subrepo: fix for merge inconsistencies
    update: delete bookmarks.current when explicitly updating to a rev (issue3276)
    update: don't move the active bookmark if a rev is specified with -r