- group tool commands into classes
- add docstrings to command classes and methods
- annotate command method args
- generate call signatures + help and usage screens on the fly
- API changes:
- listaddresses,twview: new 'age_fmt' option replaces 'show_days' and 'show_age'
- addrfile_chksum and friends: 'mmtype' option removed
- tooltest.py, tooltest2.py and test.py have been updated accordingly