Animators can now have dimension and color values.

You can now use floats, ints, dimensions, or colors as input values
in XML for Animator objects. There is still a 'valueType' attribute
that lets you specify the number values to create the animator with,
though it defaults to floats (or in the case of color inputs, to ints).

Change-Id: I65f1df802db602c33f2a0308a663b6f808148e25