[docs] Make sure to document the point-release process
[docs] Make sure to document the point-release process

Put the documentation right inside configure.ac, lest I forget.

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