generalized lindblad_operator to optionally take two operators as input
remove function that adds np. to function names because it does not work (broken for np.arctan)
wip: use multiline code segments instead of many lines
distinguish between ndarrays of Qobjs and a full ndarray matrix for basis transform
further code cleanup in codegen
use four spaces instead of broken mix of tab argument and explicit tabs
fixed another tab issue
allow specifying a transformation matrix as Qobj operator
Merge pull request #153 from jrjohansson/generalized-lindblad-operator

Generalized lindblad operator