Re: merge emacs-bidi into the main tree

    Synchronizing emacs-unicode to HEAD will take a few weeks
    more.  After that, I'll take a look at Eli's code and decide
    what to do.  In any cases, I will install the changes for
    BIDI in the branch emacs-unicode-2 because the current codes
    of emacs-bidi depends on automatic-composition facitliy to
    display Arabic and Hebrew, and that exists only in
    emacs-unicode (and in emacs-bidi) version.

I am not sure what this means.  What is the difference between the
branch emacs-unicode-2 and the branch emacs-unicode?