make sure we‘re running inside Merb
Required files
extlib
merb-auth-core/authentication
merb-auth-core/strategy
merb-auth-core/session_mixin
merb-auth-core/errors
merb-auth-core/responses
merb-auth-core/authenticated_helper
merb-auth-core/customizations
merb-auth-core/bootloader
merb-auth-core/router_helper
merb-auth-core/callbacks