Merge 0.9->0.10

diff --cc util/filters.lua
index d24bd33e06b0c74bba0462360757bb49733ce88c,8a470011fe4b688b6bd7259fc084098ab00f2c86..c2bdca070229f0f7ae6d9c816b56bea255c1efca
--- 1/util/filters.lua
--- 2/util/filters.lua
+++ b/util/filters.lua
@@@ -52,8 -52,8 +52,8 @@@ function add_filter(session, type, call
        local i = 0;
        repeat
                i = i + 1;
 -      until not filter_list[i] or filter_list[filter_list[i]] >= priority;
 +      until not filter_list[i] or filter_list[filter_list[i]] < priority;
-       
+ 
        t_insert(filter_list, i, callback);
        filter_list[callback] = priority;
  end