fixes bug where output pin could be connected to output pin
makes subpatch pins being deleted when interface IOBox is deleted
fixes README
adds VVVV.Helpers.dynamicPins method and uses it for supporting dynamic pin counts in various nodes
fixes bug when pach did not update correctly after pin count changes; adds dynamic input pin support for Group (Canvas VVVVjs)
makes creation/deletion of interface pin update parent patch correctly
fixes bug where also subpatch input pin was created when only output pin should be
adds LookAt (Transform) and LookAt (Transform Vector)
uses VVVV.Helpers.dynamicPins in Cons (Spreads)
fixes -1 bin size bug in BezierCurve (Canvas VVVVjs)