0.6.0

New features

• Handle RESET_USER_ENV inside lsst.rsp.startup.
• Add utility functions to get values that were constants in the single-Python model but now are not.

What's Changed

• tickets/DM-44731: adapt for two-python model by @athornton in #44
• Roll up changelogs by @athornton in #45

Full Changelog: 0.5.5...0.6.0