Require exact versions of our dependencies (argparse and PyStemmer)
Require exact versions of our dependencies (argparse and PyStemmer)

This commit also fixes the argparse version, which was left at 0.1
after switching from cmdparse.

DarkMio/cobe,meska/cobe,LeMagnesium/cobe,tiagochiavericosta/cobe,pteichman/cobe,pteichman/cobe,LeMagnesium/cobe,tiagochiavericosta/cobe,wodim/cobe-ng,wodim/cobe-ng,DarkMio/cobe,meska/cobe