Log Message:
Update to 3.0.1:

If you had installed 3.0 and were using the newly bundled hg-svn
or hg-git, you must change the name of those extensions to hgsubversion
and hggit respectively. The method of their bundling has been
changed because of issue #3768. Post-upgrade, you should be able
to de-select "hg-git" and/or "hg-svn" from the settings \ 
dialog and
select the new "hggit" and/or "hgsubversion" respectively.

Bug Fixes

    commit: do not crash by invalid issue.regex expression (fixes
    #3732)
    customtools: separate arguments before running external commands
    (fixes #3752)
    graph: fix problem about `showgraftsource` and `branch`
    repowidget: resize columns only when model is initially loaded
    (fixes #3742)
    wctxactions: resurrect 'forget' action for added files (closes
    #3748)
    commit: clear unmodified message, including the default merge
    message, when repository changed (fixes #3755)

Installer

    bundled hgsubversion moved from hg-svn to hgsubversion
    bundled hg-git moved from hg-git to hggit