0.23.0 / 2018-10-18

• [BUGFIX] Dogshell: Submit --date_happened timestamp when posting events, #287, #301 (thanks @gplasky)
• [FEATURE] API: Add search and groups search methods to the Monitor resource, #299
• [IMPROVEMENT] Dogshell: Set API and APP keys with environment variables, #228 (thanks @taraslayshchuk)
• [IMPROVEMENT] DogStatsD: Prevent an issue that was causing the timed context manager object from overwritting a method with an instance variable, #263 (thanks @florean)
• [OTHER] Include tests in PyPI tarball, #259 (thanks @dotlambda)