Add Tier0Plugin config to AnalyticsDataCollector

This was missing from the config
support a connect string passed with global tag

Changes to the Express spec to use connect strings passed with the global tag.
Please note: the connect string is not saved in the WMBS RunConfig copy
Merge pull request #4102 from lucacopa/tier0plugin_datacollector

Add Tier0Plugin config to AnalyticsDataCollector
Merge pull request #4103 from hufnagel/globaltag-connect

support a connect string passed with global tag