Test DOMMatrix non-mutating methods


PASS test translate() 
PASS test scale() without offsets 
PASS test scale() with offsets 
PASS test scale3d() 
PASS test rotate() 2d 
PASS test rotate() 
PASS test rotateFromVector() 
PASS test rotateAxisAngle()  
PASS test skewX() 
PASS test skewY() 
PASS test multiply with inverse is identity 
PASS test flipX() 
PASS test flipY() 
PASS test transformPoint() - 2d matrix 
PASS test transformPoint() - 3d matrix