Cleaned up overly enthousiastic comments
From the styleguide:
On the other hand, never describe the code. Assume the person reading
the code knows Python (though not what you're trying to do) better
than you do.
Patch by: Sverre Rabbelier
Properly check if a program is active
Also cleaned up checkIsHost, which got merge-mangled when refactoring
the access module.
Patch by: Sverre Rabbelier