SVG 1.1 dynamic update tests

Tests dynamic updates of the 'k4' property of the SVGFECompositeElement object

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".

PASS Math.round(overComposite1.k4.baseVal * 1000) is 2900
PASS Math.round(overComposite1.k4.baseVal * 1000) is 300
PASS successfullyParsed is true

TEST COMPLETE