change GL_REPO_PATH -> GL_REPO_NAME

lib/plugins/grack/auth.rb

@@ -14,7 +14,7 @@ module Grack
           user                = User.auth_by_token_or_login_pass(u, p) and
           ability             = ::Ability.new(user) and ability.can?(action, project) and
           ENV['GL_ID']        = "user-#{user.id}" and
-          ENV['GL_REPO_PATH'] = project.path
+          ENV['GL_REPO_NAME'] = project.path
         end.call(env) unless project.public? && read? # need auth
       end
       @app.call(env) # next app in stack