Some GTK theming related commits and 3.6 release

[Ruslan Kabatsayev]

Hello,

I've added some summary of GTK theming changes to the wiki here
http://wiki.documentfoundation.org/ReleaseNotes/3.6#GUI, but it seems
commits 7d0d52fb758249a7d6b8fc5e36c0e77354e5f5c3 and
866599ab5ce091de56094d4d458e010ba56d22d0 haven't been added
(cherry-picked/merged or whatever) to libreoffice-3-6 branch, while
they were supposed to appear in 3.6. Is it OK? Could someone take care
of them?

Regards,
Ruslan