Fixes to wxGA_TEXT and wxGA_PROGRESS documentation.

Correct the HTML output format for wxGA_PROGRESS, it was indented incorrectly
because Doxygen appears to need a blank line (i.e. end of paragraph) after a
"@since".

Also improve the wording of the styles descriptions a little.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@78081 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Make Clear() virtual in wxItemContainer base class.

This ensures that overridden wxComboBox::Clear() is called even when it's
invoked via a pointer or a reference to wxItemContainer (and not just one
to wxComboBox itself or its other base wxTextEntry).

Closes #16654.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@78082 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix deleting wxPG properties with sub-properties.

If property contains sub-properties they should be deselected prior deleting the property.

See #16617.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@78083 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
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 project files

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

Signed-off-by: Marian 'VooDooMan' Meravy <vdm113@gmail.com>
sync with upstream (SVN); patched for ICC; removed files we do not support

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

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

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