This patch adds basic skim read feature. When user issues the 'Skim Read' command (Ctrl + KP_Add in desktop, Orca + Ctrl + semicolon in laptop), Orca skims through the entire document, starting at the current line/ sentence, and then reading only the first line/ sentence of each subsequent paragraph. It reads either lines or sentences depending on the "Say-All-By" setting. Works for OOo writer, Firefox, Evolution and Thunderbird.
I have uploaded the patch https://bugzilla.gnome.org/attachment.cgi?id=174591
to the Skim Read bug https://bugzilla.gnome.org/show_bug.cgi?id=577481.
Please test the patch and tell me if you find it useful.