fixed issues when running with RAILS_RELATIVE_URL_ROOT
Created by: frohoff
fixed regression in grack auth when running with RAILS_RELATIVE_URL_ROOT fixed path extraction for git tree browsing with RAILS_RELATIVE_URL_ROOT
Created by: frohoff
fixed regression in grack auth when running with RAILS_RELATIVE_URL_ROOT fixed path extraction for git tree browsing with RAILS_RELATIVE_URL_ROOT