DOC: update the roadmap file with the latest changes

A few points were already addressed. Mention that next changes are
for version 1.8 now.

ROADMAP

@@ -1,15 +1,12 @@
-Medium-long term roadmap - 2015/10/13
+Medium-long term wish list - 2016/11/25
 
 Legend: '+' = done, '-' = todo, '*' = done except doc
 
-1.7 or later :
+1.8 or later :
   - return-html code xxx [ file "xxx" | text "xxx" ] if <acl>
 
   - return-raw  [ file "xxx" | text "xxx" ] if <acl>
 
-  - add the ability to only dump response errors to more easily detect
-    anomalies without being polluted with attacks in requests.
-
   - have multi-criteria analysers which subscribe to req flags, rsp flags, and
     stream interface changes. This would result in a single analyser to wait
     for the end of data transfer in HTTP.
@@ -18,8 +15,6 @@ Legend: '+' = done, '-' = todo, '*' = done except doc
     based on request matching. Each session will have one ebtree node to be
     attached to whatever queue the session is waiting in.
 
-  - add a flag in logs to indicate keep-alive requests ?
-
   - make it possible to condition a timeout on an ACL (dynamic timeouts)
 
   - forwardfor/originalto except with IPv6
@@ -49,10 +44,6 @@ Legend: '+' = done, '-' = todo, '*' = done except doc
   - evaluate the changes required for multi-process+shared mem or multi-thread
     +thread-local+fast locking.
 
-  - ability to decide whether to drain or kill sessions when putting a server
-    to maintenance mode => requires a per-server session list and the change
-    above.
-
 Old, maybe obsolete points :
   - clarify licence by adding a 'MODULE_LICENCE("GPL")' or something equivalent.