reverse coefficient order in PolyLine.poly
change gauss[n] to mean exact up to poly degree n
rename scripts to examples
fix black background bug
remove tuple3 implies linspace in mesh.rectilinear
remove deprecated topology.elem_eval stack arg
remove topology.project/projection default ischeme
change Topology.elem_eval default separate=False
global rename 'coords' to 'geometry'
simplify ExcInfo using linecache
move relevant FrameInfo code into constructor
replace ExcInfo by cleaner setup
separate source and context in cachable properties
move _find_classname to Frame._name
add util.keyboard
rename exception.py to traceback.py
add traceback.format_exc
name changes
ren log.traceback to stack, show call trace by def
move keyboard from util to traceback