v1.0.0-alpha.2

Allow invalid constructor arguments to the configuration based property provider. This makes it easier for people to define the measurement id (and api secret) in .env files. You can put this in your .env and it will not complain now:

###> setono/google-analytics-bundle ###
GOOGLE_ANALYTICS_MEASUREMENT_ID=
GOOGLE_ANALYTICS_API_SECRET=
###< setono/google-analytics-bundle ###