Avoid crash when deleting range that includes the focus object.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75051 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Corrected wxRTC IsDefault() implementations

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75052 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix HasCharacter/PragraphAttributes to use the focus object

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75053 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix selection drawing for table cells

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75054 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
patched for ICC

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