[Serdev] Weight and prefix/strip column in the lcr table

[Andreas Granig]

Hello Francesco,

> I've patched your lcr.diff with lcr_mod.c and I've adjusted ser_mysql.sh script with the new table gw_cap. Everything compiles, but SER crash.

Did you get a chance to test the latest patch? It works great here for 
quite a while now, using 6 gateways with different priorities and ~300 
concurrent calls.

Andy