- cleaned up and formatted module tr (reduced indentation in
_translate(), simplified and commented out all strip operations
in translateClass because I see no reason to do it),
it should be used by all other modules which need _translate()
- reduced positional args in _translate() calls (which in fact are
essentially the placeholders for c++ binding) and removed
redundant sequential arg() calls in the modules
__init__ and networkstatus
- made units like kB, MB, kB/s available for translation
