No longer compile out message performance checking, it can be fully disabled at runtime.
Fixed the rmanager display of message performance warning and made it similar to sniffer.


git-svn-id: http://yate.null.ro/svn/yate/trunk@5434 acf43c95-373e-0410-b603-e72c3f656dc1
Fixed several race conditions in message post-dispatch hooks and extmodule watchers.
Engine status now reports the number of post-dispatch hooks installed.


git-svn-id: http://yate.null.ro/svn/yate/trunk@5435 acf43c95-373e-0410-b603-e72c3f656dc1
Merge branch 'upstream' of github.com:vir/yate into deb
Updated debian package version to 4.3.1~svn5435