[liblo] Added functions: lo_send_from

Hi,

I have just updated CVS and added four new functions.

lo_send_from(lo_address, lo_server, lo_timetag, path, type, ...)
lo_send_message_from(lo_address, lo_server, lo_message )
lo_send_bundle_from( lo_address, lo_server, lo_bundle)
lo_server_thread_get_server( lo_server_thread )

The purpose of the functions is to allow an application with multiple  
lo_servers to choose which socket a message is sent from.

lo_send_from accepts an optional timetag argument, so it can also be  
used like lo_send_timestamped().

In small compensation for bulking up the liblo API, I have merged the  
duplicated code in lo_send_message and lo_send_bundle_from into a new  
static function called send_data.


Unfortunately there is quite a lot of duplicated code in  
lo_send_internal, lo_send_from_internal and  
lo_send_timestamped_internal. Sadly these cannot be merged into a  
single function, as it would break binary compatibility. The other  
two of the functions cannot call lo_send_from_internal, because of  
the complications of variable numbers of arguments.


I have also bumped up the version number of liblo in CVS, in  
preparation for the next release.


Hope I haven't broken anything !

nick.