v9.0.0

Update compatibility for Angular 9.

v5.0.0

Compatibility with Angular 5

v2.0.2

• Replace deprecated OpaqueToken by InjectionToken (issue #11).

v2.0.1

 * [doc] Add example for environment log level. (a3b4598)

v2.0.0

 * Fixes README typo

v1.0.2

Improve module export

v1.0.1

Improve module export

v1.0.0

Merge remote-tracking branch 'origin/master'

# Conflicts:
#	package.json