Force commit in lift_embargoes

Fixes eprints#21.

Most of the time lift_embargoes will cause an eprint commit (/revision) due to
fileinfo changing. However if there is no icon on the document the eprint will
not be committed, causing any triggered behaviour (e.g. full_text_status) to
not occur.

This change calls a force-commit on the document (which will force-commit the
eprint in turn).

bin/lift_embargos

@@ -144,8 +144,7 @@ $list->map( sub {
 	{
 		$doc->set_value( "security", "public" );
 		$doc->set_value( "date_embargo", undef );
-		$doc->commit;
-		$eprint->commit;
+		$doc->commit( 1 ); # pass force through to parent eprint
 		$eprint->generate_static;
 	}
 } );