[Devel] LCR enhancements

[Juha Heinanen]

Angel Carpintero writes:

 >  - Dest URI regex matching 
 > 
 > Right now only from_uri supports that feature , not sure why dest uri
 > only support prefix.
 > 
 > What do you think about it ?

lcr module was designed for choosing gws based on phones numbers that
are unique at the proxy.  in such situations there is no need to look at
domain of the r-uri, just the user part, which is a string of digits.
in most cases gw selection is based on prefixes of that string.

of course prefix could be changed to regexp, but regexps create
implementation complexity when gw data is cached and regexp processing
slows down operation of the proxy.

-- juha