2.0.1

This release includes the following bug fixes and enhancement:

• #63 - bug - HttpInterceptor not working on 2.0.0.
• #64 - bug - AOT Failing on ng build --prod --aot=true.
• #67 - bug - keycloak-heroes example is missing.
• #68 - enhancement - Backport fixes from 4.x.x to 1.3.x .
• #69 - bug - Missing KeycloakAuthGuard in keycloak-angular@4.0.0-beta.1.