analysis: eoln fixup
pred: remove default motionCompensation argument values

bugs waiting to happen; they've bit us multiple times in the past
rc: compute average of qpaRc, qpAq per frame even in 2 pass
rc: calculate mvBits, coefBits per Cu for 2 pass in skip mode as well
entropy: do not code a scaling list in PPS

The scaling list in PPS is only necessary to override the scaling list in the
SPS.  We will only ever have at most one scaling list (at this time)
entropy: nits
entropy: remove ambiguity about timing info signaling

--HG--
extra : amend_source : 8262a42fa6ae0a60c582182a00c43b5837aedf16
entropy: reorder methods in general encode order for clarity, no logic change