The mouse-centered zooming work from last year

[Tor Lillqvist]

Last year there was work by Tim Hardeck to implement mouse-centered
zooming. See http://nabble.documentfoundation.org/Libreoffice-ux-advise-PATCH-Mouse-centered-zooming-td3906261.html
for instance. For some reason that work never got included in the
sources, I guess there were some glitches still in it and then Tim
didn't have more time to work on it, or something. Is there any reason
to not have another go at it?

(Tim, is the patch attached to the email linked to above the last
version of this work?)

--tml