Cloning of lo_message objects
Merge pull request #6 from ventosus/clone_message

Cloning of lo_message objects
For compatibility with MingW-w64, gcc 4.7.1, add LIBRARY line to .def file.

The DLL filename is hard-coded for now.  Build problem discovered by
Karl Svec.
Some changes to support automake-1.13.
Update configure.ac according to autoupdate 2.69.
Update doxygen file according to 'doxygen -u' for doxygen 1.8.1.2.
Fix a doxygen reference due to badly-placed group ending.
UDP resolve enable in lo_server struct
Move lo_server_thread_pp() prototype to lo_serverthread.h.

Avoid the use of #ifdef in the headers.
Only call getnameinfo() when lo_address_get_hostname() et al are called.

Instead of calling it for every received message.
Merge branch 'udp_resolve_enable'
Resolve lo_address hostname in send_data() if necessary.

Fixes testlo, which was broken in previous commit.