Add deprecations for BehaviourBspline and color_parse
Add deprecations for BehaviourBspline and color_parse

The clutter.color_parse function has been replaced by color_from_string
and the functionality of BehaviourBspline is now integrated in
BehaviourPath.

pmarti/pyclutter,GNOME/pyclutter,pmarti/pyclutter,pmarti/pyclutter,GNOME/pyclutter,pmarti/pyclutter