Wheezify, Puppetify, and Vagrantify
Spring cleaning

 - Add basic controller tests
 - Remove unused code
 - Disable asset pipeline (since application has no UI)
 - Remove xslt parameters (all neede values is available in Solr response)
 - Update metastore testdata
 - Refactor proxy_controller for readbility
 - Log request metrics and cache hits/misses
 - Add graylog2 logging
Update Rails to 3.2.13