[Evolution-hackers] Evolution's GTK+ requirement

[Matthew Barnes <mbarnes redhat com>]

Given all the scrolling and selection bug reports I'm seeing from
GTK-3.4 users, none of which are present when building against GTK-3.2,
I suggest we keep our minimum requirement at GTK-3.2 until these issues
get sorted out, either by us or by Xorg/GTK+ developers.

The problems seem to have started when GTK+ 3.3.x switched to XInput2.
I don't know the details, but my guess is there's some behavior changes
and GDK's X11 backend was written to the old XInput behaviors.  Being
able to build Evolution 3.5 against GTK-3.2 to prove these are not our
regressions is useful.

I don't see any particularly compelling new APIs in GTK-3.4 anyway.

Sound okay?  Any objections?

Matt