Specs for solr.

Also switched solr ports to default as they appear to be being ignored
at least in Rspec tests.
Reduced sidekiq concurrency, still maxes out the server's resources anyway
Removed test setup code from Chef

Since we shouldn't really be using the provisioner to populate the
database, etc. @Jellyfishboy from now on if you want to clear out the
database simply do:
rake db:reset

Which will clear out Solr too.