Need to update tests, documentation. Note that order of arguments are different for subclasses in the current structure--change that.

1. Very ugly way to override super's max_times in rate_delay

2. Changed test cases a bit to correspond with new S7 syntax, but getting random errors so need to look into more

Couple caveats/notes:

Needed to change a few tests to match new S7 syntax.

Current method of overriding super's default values is inelegant (see `rate_delay`), but functional. Would like to change.

Still needs some documentation.

Changed class construction to conform with new API. Removed default values in properties as they are listed in constructors.