Backwards compatible change adding optional `args' param to ActiveFedora::SolrService.count,
enabling the method to pass args through to ActiveFedora::SolrService.query.
Merge pull request #105 from dchandekstark/solr-service-count-args

Add `args' param to ActiveFedora::SolrService.count
Test against rails 4.0.0.rc2
Adding CONTRIBUTORS and mailmap
Merge pull request #107 from projecthydra/adding-contributors-to-active-fedora

Adding CONTRIBUTORS and mailmap