[Serusers] xlog backport

[Juha Heinanen]

Thomas Björklund said:

> Extracted the backport into my rel_0_9_0 and tried to compile
>
> make[1]: Entering directory
> `/home/staff/tobj/src/sip_router-0.9.0/modules/xlog'
> ../../Makefile.rules:77: xl_lib.d: No such file or directory
> xl_lib.c:51:41: ../../parser/parse_refer_to.h: No such file or directory

sorry about that.  i forgot that refer-to parsing was not in 0.9.0.  i'll
make another version later today.

-- juha