Apache Solr datasources need scrubbing

@George Bica - Last one.  This is an eventsource, so no pretty graphs here.  It makes an API call to pull all of the events in the solr log and then alerts on Error and Severe events only.  It doesn't apply to servers by default because it can be quite noisy if you don't have it tuned properly.  Once you're sure it's not going to blow up after you've applied it, go ahead and change the Applies To rules and you should be good to go.  Hope these help!