Fix ribbon bar tab width computation if the first tab is hidden.

The logic for the first tab should really deal with the first visible tab as
the actual first tab might be hidden and in this case we shouldn't account for
it at all.

Closes #16432.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77093 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
add our support files

Signed-off-by: unknown <vdmn@vdmn.lan>
make our scripts executable

Signed-off-by: unknown <vdmn@vdmn.lan>
update our support scripts

Signed-off-by: unknown <vdmn@vdmn.lan>
copy the script in process of disappearing itself

Signed-off-by: unknown <vdmn@vdmn.lan>
updated helper script

Signed-off-by: unknown <vdmn@vdmn.lan>
update our support script

Signed-off-by: unknown <vdmn@vdmn.lan>
Merge branch 'master' of ../wxWidgets_vanilla_trunk-svn into merge
sync with upstream (SVN); patched for ICC; removed files we do not support

Signed-off-by: Marian 'VooDooMan' Meravy <vdm113@gmail.com>
restore our README.md for Github

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