Negative results from WebDriver are not Errors

[usrlocalben]

...or put another way, correctly transporting errors is not itself an error.

For example, in many test situations the most likely message traffic between Arsenic and WebDriver will be "NoSuchElement" as test implementations sit in wait_for_element() polling loops. These exceptions are mischaracterized as "errors," resulting in noisy log output--and confusion.

Logging all exceptions that occur also results in double-logging, since responses are already logged.

[dimaqq]

Code is fine; I'm ambivalent about the semantics change 🤷🏿

[dimaqq]

@ojii poke