Log Message:
Updated py-tortoisehg to version 3.4.

Release notes:
TortoiseHg 3.4 is a regularly scheduled feature release.

Bug Fixes

    bookmark, matching, sign, tag: allow to resize horizontally while
     having fixed height (refs #4043)
    bookmark, tag, update: avoid combo box taking too much space (fixes #4043)
    commit: prompt for new largefiles first to skip extra confirmation
     (fixes #1954)
    filedata: rewrite copy detection by using copies.pathcopies() (fixes #3949)
    merge: discard p2 changes without using debugsetparents (fixes #3856)
    mergetools: add $output to meld to change which file will be saved
     (fixes #4134)
    quickop: do not calculate status unnecessarily in GUI process (refs #1828)
    quickop: catch known exceptions raised from repo.status() (fixes #1828)
    repomodel: clear cache of latest tags on repository change (fixes #4137)
    repoview: ignore corrupted column_widths saved in QSettings (fixes #1456)
    repowidget: refresh commit tab after rollback or custom hg command
     (fixes #3981)
    revset: set appropriate size policy to status bar of query dialog
     (fixes #834)
    sync: get host fingerprint asynchronously by extension command
     (fixes #4114)

Improvements

    bookmark: add simple bookmark dialog to sync screen (fixes #322)
    commit: do not overwrite username if ui.askusername is set (closes #4064)
    filectxactions: enable shortcuts only if the owner or its children has focus
    filectxactions: add shortcut to delete unversioned file (closes #3681)
    fileview, status: enable annotate mode for working directory
    rebase: mention command line options in checkbox labels
    sync: add "unbundle" to "repository" menu (fixes #4067)
    workbench: add default merge action to main menu and toolbar (closes #222)