Add comment to caution users about :aleph/* keys in request maps

Author: DerGuteMoritz

src/aleph/http/core.clj

@@ -242,9 +242,10 @@
   :server-name (netty/channel-server-name ch)
   :server-port (netty/channel-server-port ch)
   :remote-addr (netty/channel-remote-address ch)
+  :protocol "HTTP/1.1"
+  ;; These keys are internal to Aleph and should not be relied on
   :aleph/channel ch
-  :aleph/request-arrived request-arrived
-  :protocol "HTTP/1.1")
+  :aleph/request-arrived request-arrived)
 
 (p/def-derived-map NettyResponse [^HttpResponse rsp destroy-conn? body]
   :status (-> rsp .status .code)

src/aleph/http/http2.clj

@@ -822,6 +822,7 @@
 
      :protocol              "HTTP/2.0"
 
+     ;; These keys are internal to Aleph and should not be relied on
      :aleph/channel         ch
      :aleph/writable?       writable?
      :aleph/h2-exception    h2-exception