Repeat count on default clip, default clip cloning.

Allow repeatCount on default clip in animation files.  Example:

animation pulse
{
	property = ANIMATE_SCALE
	keyCount = 3
	keyTimes = 0 500 1000
	keyValues = 1.0 1.0 1.0 1.5 1.5 1.5 1.0 1.0 1.0
	curve = LINEAR
	repeatCount = INDEFINITE
}

Also, clone default clip when an animation is cloned.  (This is actually a seperate issue, sorry.)