* start shapetracker
* that late reshape is crushing our hopes
* simple failure
* DumbShapeTracker passes tests
* improve st tests
* stacked view tracker works
* flip works
* tests pass
* shapetracker works
* use ShapeTracker in ops_gpu
* a couple lines
* fix 0 shape
* less lines
* use shapetracker for new_shape in ops.py
* simpler still
* padding with a ZeroView
* gamed it a little