MINOR: actions: change actions names

For performances considerations, some actions are not processed by remote
function. They are directly processed by the function. Some of these actions
does the same things but for different processing part (request / response).

This patch give the same name for the same actions, and change the normalization
of the other actions names.

This patch is ONLY a rename, it doesn't modify the code.
diff --git a/include/proto/proto_http.h b/include/proto/proto_http.h
index 1f63c57..a3a261f 100644
--- a/include/proto/proto_http.h
+++ b/include/proto/proto_http.h
@@ -210,12 +210,12 @@
 	return len;
 }
 
-/* for an http-request action HTTP_REQ_ACT_TRK_*, return a tracking index
+/* for an http-request action ACT_HTTP_REQ_TRK_*, return a tracking index
  * starting at zero for SC0. Unknown actions also return zero.
  */
 static inline int http_req_trk_idx(int trk_action)
 {
-	return trk_action - HTTP_REQ_ACT_TRK_SC0;
+	return trk_action - ACT_ACTION_TRK_SC0;
 }
 
 /* for debugging, reports the HTTP message state name */