* Modernized a few awkward method calls:
* Deprecated support for positional arguments in `get_status`, we use a list
of bugnumbers explicitly now: `get_status(123, 234, 345)` becomes
`get_status([123, 234, 345])`
* Deprecated support for positional arguments in `get_usertags`, we use a
list of tags explicitly now:
`get_usertags('mailexample.com', 'foo', 'bar')` becomes
`get_usertags('mailexample.com', ['foo', 'bar'])`
* Deprecated support for positional arguments in `get_bugs`, we use `kwargs`
explicitly now:
`get_bugs('package', 'gtk-qt-engine', 'severity', 'normal')` becomes
`get_bugs(package='gtk-qt-engine', severity='normal')`
the old ways to call those methods will be supported for a while, but there
will be deprecation warnings.
* Report coverage for tests as well
* Updated a few tests to increase coverage
* Removed randomness from some tests