A few documentation errors in the 1.5 spec
5-1: typo under instance_controller:
instantiates a a COLLADA controller resource.
5-121: "C1 is (INPUT[i+1], OUTPUT[j][i+1])"
should be:
"P1 is (INPUT[i+1], OUTPUT[j][i+1])"
5-138: Child elements of <source> / <technique_common>
should probably be <accessor> not <asset>
