Revert "Load configuration from inside application, not /etc/"
Revert "Load configuration from inside application, not /etc/"

This reverts commit 7731336e6c35229fca533cbe237daa4986c58d12.

chowells79/rubycas-server,intinno/ruby-cas-server,Windermere/rubycas-server,intinno/ruby-cas-server,rubycas/rubycas-server,Windermere/rubycas-server,infoman/rubycas-server,adamdruppe/rubycas-server,acsellers/cas,chowells79/rubycas-server,jay3126/ruby_cas_server,identification-io/rubycas-server,adamdruppe/rubycas-server,identification-io/rubycas-server,DiegoSalazar/ROR-RubyCAS-Server,infoman/rubycas-server,acsellers/cas,chowells79/rubycas-server,rubycas/rubycas-server,geo767/rubycas-server,DiegoSalazar/ROR-RubyCAS-Server,identification-io/rubycas-server,rubycas/rubycas-server,geo767/rubycas-server,infoman/rubycas-server,adamdruppe/rubycas-server,Windermere/rubycas-server,jay3126/ruby_cas_server,geo767/rubycas-server