v0.7.0

Added

• class Behavior, a superclass of all behavior classes.
• class ExactlyOnceBehavior indicating we want to create a CommonBehavior that results in each window producing exactly one output (shifted in time by an optional shift parameter).
• function exactly_once_behavior creating an instance of ExactlyOnceBehavior.

Changed

• BREAKING: WindowBehavior is now called CommonBehavior, as it can be also used with interval joins.
• BREAKING: window_behavior is now called common_behavior, as it can be also used with interval joins.
• Deprecating parameter keep_queries in pw.io.http.rest_connector. Now delete_completed_queries with an opposite meaning should be used instead. The default is still delete_completed_queries=True (equivalent to keep_queries=False) but it will soon be required to be set explicitly.