The rest of the trappings of a normal, slightly dated solr conf

Note the admin-extra placeholder files that will clean up logging
messages generated by the admin panel.  These or empty stubs should be
in all similar solr configs.
Updated and pared down Solr schema.xml

This runs with the newer version of Solr (4.9).  Changes include:
 ~ Remove all unused field types
 ~ Provide application name (Argo is not "Example")
 ~ Comment out deprecated p* field types and convert fields to t* types
 ~ Formatting for readability
 ~ Comments for semantics