Land rapid7#1721, Stage encoding for reverse_http(s)

This was an oversight when originally re-enabling stage encoding.

[See rapid7#1316]

Author: egypt

lib/msf/core/handler/reverse_http.rb

@@ -327,7 +327,7 @@ def on_request(cli, req, obj)
 				end
 				print_status("Patched Communication Timeout at offset #{i}...")
 
-				resp.body = blob
+				resp.body = encode_stage(blob)
 
 				# Short-circuit the payload's handle_connection processing for create_session
 				create_session(cli, {