- Port this plugin to use the new KPart extensions, HtmlExtension and KSelectorInterface,
added recently to prevent plugins from directly linking to a specific KPart.
This prevents multiple parts being loaded when not even used simply because
the plugin links against them.

- Note the recent coded added to support the dolphinpart used by konqueror for
file browsing is no longer needed as this plugin now will support any KPart
that implements the appropriate interface. Support for the new interface will
be added to the dolphin KPart. See http://reviewboard.kde.org/r/5710/