Release/0.1.5 (microsoft#667)

* add 0.1.5 notes

* bump version

Release/v0.1.4 (microsoft#634)

* docs: Add changelog for v0.1.4

* docs: Bump version number

release/0.1.3 (microsoft#506)

*  flesh out release

* docs: Add changelog

* bump version

fix: warn on background Loop without data_manager (microsoft#394)

Firt release 0.1.1