[script] Clean up the ad hoc parsing code in Actor
[script] Clean up the ad hoc parsing code in Actor

The old parsing code still assumed we had integers for pixels
and floating point values for percentages; this is not the case
anymore.

kerrickstaley/clutter-vala,djdeath/clutter,heysion/clutter-clone,Distrotech/clutter,djdeath/clutter-android,Distrotech/clutter,heysion/clutter-clone,GNOME/clutter,ebassi/clutter,Distrotech/clutter,ebassi/clutter,jigpu/clutter,ebassi/clutter,spatulasnout/clutter,jigpu/clutter,collects/clutter,djdeath/clutter-android,collects/clutter,djdeath/clutter-multithreaded,Distrotech/clutter,kerrickstaley/clutter-vala,heysion/clutter-clone,collects/clutter,spatulasnout/clutter,spatulasnout/clutter,heysion/clutter-clone,collects/clutter,ebassi/clutter,kerrickstaley/clutter-vala,djdeath/clutter-multithreaded,rkudiyarov/clutter_osx,jigpu/clutter,djdeath/clutter,rkudiyarov/clutter_osx,djdeath/clutter-multithreaded,djdeath/clutter-android,GNOME/clutter,djdeath/clutter,rkudiyarov/clutter_osx,nobled/clutter,Distrotech/clutter,jigpu/clutter,heysion/clutter-clone,ebassi/clutter,djdeath/clutter,GNOME/clutter,spatulasnout/clutter,djdeath/clutter-android,djdeath/clutter-multithreaded,jigpu/clutter,nobled/clutter,GNOME/clutter,GNOME/clutter,djdeath/clutter,dlespiau/clutter,rkudiyarov/clutter_osx,spatulasnout/clutter,dlespiau/clutter,djdeath/clutter,collects/clutter,dlespiau/clutter,djdeath/clutter-android,kerrickstaley/clutter-vala,Distrotech/clutter,jigpu/clutter,nobled/clutter