Fixes doc typos and mistakes in HildonAnimationActor.
Fixes doc typos and mistakes in HildonAnimationActor.

Based on a patch of David King <davidk@openismus.com>.

android-808/libhildon,Cordia/libhildon,Cordia/libhildon,android-808/libhildon,Cordia/libhildon,android-808/libhildon