raise_errors defaults to False, but the documentation says otherwise

[kengruven]

The docstring for SendGridClient#init says about raise_errors:

"Note, from version 1.0.0, the default will be changed to True"

It's now version 1.4.0, and the default still seems to be False.

[eddiezane]

Thanks for the report. Since we missed it on 1.0.0 I have changed the docs to say 2.0.0.