Documentation: difference rerun, runall

[Reissner]

In the package documentation Section 4.1 it seems as if there is a slight difference between rerun=always and runall=true. At least the formulations are different. I found out that the pytxcode file stores rerun only, and pythontex command line tool cannot even read runall. I did not check details but one seems obsolete. In the commandline tool, the according options cannot be specified both. Maybe it is a good idea to do so also in the package option.

Since it is the pytxcode file which passes information to pythontex tool, the and the pacakge options runall=true/false is converted into rerun=always/default , pythontex cannot distinguish the two.