c9b6a89d04
* clutter/clutter-behaviour-path.h: * clutter/clutter-behaviour-path.c: Add "since" strings; add a "knot" property which can be used to append a knot to the path; fix apidoc. * clutter/clutter-alpha.c: Add "since" strings. * clutter/clutter-feature.c: Add apidoc. * clutter/clutter-behaviour-opacity.c: Add the "opacity-start" and "opacity-end" properties; rewrite constructor to use them.