wxOSX Retina fixes: wxImageList::GetSize().

wxImageList returns size of its bitmap as pixel size, i.e.  twice the
displayed screen on HiDPI screens.  Unfortunately,
wxImageList::GetSize() is used heavily in (generic) GUI drawing code,
e.g.  to properly size wxListCtrl's icon columns.  As wxImageList is
used primarily by controls, it seems reasonable to adjust for scaling
here, rather than requiring all users of the class to do it.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75351 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Big Galician translation update from Nuria Andión.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75356 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Clarify wxGetTopLevelParent() behaviour for TLWs.

It doesn't return the parent of a TLW but TLW itself. Whether this is a good
idea or bad one, this is how it works since a very long time and we don't want
to change it any more.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75357 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Don't build wxOSX/Cocoa twice in wxOSX buildbot.

Both trunk builds were using Cocoa, change the one supposed to be Carbon to
use Carbon instead.

Also add Carbon stable branch build as this is probably even more important
than testing Carbon in the trunk.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75358 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
patched for ICC

Signed-off-by: Marian 'VooDooMan' Meravy <vdm113@gmail.com>