Release v3.4.0b5

This v.3.4.0b5 requires WeeWX 4.x.

This fork is maintained as a courtesy while we await Matthew Wall’s update to support WeeWX 4.x.

Note: Weather Underground has changed their API and forecasting no longer works for this version of weewx-forecast; nor for previous weewx-forecast versions released to work with WeeWX 3.x. The API represents a significant change and the maintainer of this fork is reluctant to add support for the new API as the decisions made might not align with the decisions Matthew Wall will make when he eventually updates the official weewx-forecast extension.