Add FRP.Helm.Signal (included in prelude)
Merge pull request #13 from veryrandomname/master

Simple Animation Module
Rename animation functions and rework docs a bit
Add warning about empty list of frames in animations
Mention FRP.Helm.Animation in the README
Use the new simplified signal stuff for demos
Multiplying form scale instead of adding it.
Merge pull request #15 from zimothy/master

Multiplying form scale instead of adding it
Add Timothy Jones to AUTHORS
fixed animation reset
make empty animation impossible