NEWS update for 4.8.2
Post-release version bump
Bug 731611 - Do not include marshall-generated code in tarballs
Bug 732499 - Use named colors from themes
Remove usages of deprecated gtk_widget_ensure_style()
Remove unused and obsolete gtkhtml-zip.in
NEWS update for 4.8.3
Post-release version bump
Add forgotten chain-up-s to parent's constructed() method

This stroke with gtk+ 3.13.4, where GtkComboBox relies on
the constructed() being called. It was reported in Red Hat's
bugzilla as https://bugzilla.redhat.com/show_bug.cgi?id=1120291