message: old versions of visual studio should no longer complain about unrecognized warning numbers
diff: @@ -157,6 +157,10 @@ if(MSVC)
  /wd4571 # SEH related
  /wd4710 # function not inlined
  /wd4711 # function 'x' selected for automatic inline expansion
  +
  + /wd4616 # invalid compiler warnings - https://msdn.microsoft.com/en-us/library/t7ab6xtd.aspx
  + /wd4619 # invalid compiler warnings - https://msdn.microsoft.com/en-us/library/tacee08d.aspx
  +
  #/wd4820 # padding in structs
  #/wd4625 # copy constructor was implicitly defined as deleted
  #/wd4626 # assignment operator was implicitly defined as deleted
  