[Users] Configurable TOS

[Bogdan-Andrei Iancu]

Hi,

thanks to the patch from Andreas Granig, OpenSER has now support for 
configurable TOS (Type Of Service) via configuration script.

I did some small enhancements like the possibility to use for definition 
both numbers and names for TOS (names are easier to remember). The name 
are exactly as the defines in libc.

For how to use it, please refer to:
    http://www.openser.org/dokuwiki/doku.php?id=openser_core_cookbook#tos


regards,
bogdan