added vecN.Interpolate
Implement Rect.Contains and Rect.Intersects.
Merge pull request #1 from iopred/patch-1

Implement Rect.Contains and Rect.Intersects.
float64 quaternion.Negate() returns self
docu
added vec4.T.Shuffle(ShuffleMask)
added vec4.ShuffleMask constants for RGBA
Shuffle docu
added vecN.T.Clamp()
use fmt.Sscan instead of Sscanf
Add a Bitdeli badge to README
Merge pull request #2 from bitdeli-chef/master

Add a Bitdeli Badge to README