[HarfBuzz] harfbuzz: Changes to 'mater'

[Behdad Esfahbod]

New branch 'mater' available with the following commits:
commit 93d8573ddcf97648983a1c1b5cdda8a3ec6d4432
Author: Behdad Esfahbod <behdad at behdad.org>
Date:   Tue Nov 1 13:33:18 2011 -0400

    Fix bug in contrib/harfbuzz-unicode.c

commit ff0612c2e7df1b86fc702c72e3015a6a5ae39b4c
Author: Behdad Esfahbod <behdad at behdad.org>
Date:   Thu Sep 8 00:42:54 2011 -0400

    Fix OOB access possibility in old harfbuzz
    
    As reported by Kenichi Ishibashi.

commit 81f2ecafa19b602f950df5a9e6e1b99c4b5ea55e
Author: Behdad Esfahbod <behdad at behdad.org>
Date:   Tue Jun 14 16:40:17 2011 -0400

    Bug 30319 - open type init feature applied on character U+09c7 even...

commit 81c8ef785b079980ad5b46be4fe7c7bf156dbf65
Author: Behdad Esfahbod <behdad at behdad.org>
Date:   Tue May 10 15:47:24 2011 -0400

    Fix crash!