Merge branch 'master' of https://framagit.org/simgrid/simgrid

diff --cc ChangeLog
index 22c2c5d,985ace6..55e1c9c
--- 1/ChangeLog
--- 2/ChangeLog
+++ b/ChangeLog
@@@ -60,7 -60,8 +60,8 @@@ Fixed bugs (FG#.. -> framagit bugs; FG!
   - FG!15: execute_flops now logs compute
   - FG!16: Fix the ns-3 bindings when several flows are simultaneously finishing
   - FG!17: ns-3: unblock the right number of communications + others issues
 -
+  - FG!18: Improving the performance of the ns-3 bindings
 + - GH#207: Error in the throughput of TCP transfer
  ----------------------------------------------------------------------------
  
  SimGrid (3.23.2) July 8. 2019