- Add baselibs.conf to spec file

- Update to version 0.27
* Support for sending and receiving nested bundles, including
ref-counted memory handling for bundled messages.
* Support for multicast in oscdump and oscsend tools.
* Callbacks for bundle handling.
* Select desired network interface for multicast.
* Fix blocking semantics of lo_server_wait() / lo_server_recv().
* Make inclusion of threading-related code optional.
* Basic compilation script for Android.
* Allow to optionally disable server dispatch queueing at runtime.
(In this case messages are dispatched immediately even if they are
timestamped for later.)
* Support bidirectional use of TCP ports using lo_send_from().
* Add SLIP protocol support for packetization when sending and
receiving with TCP.
* Allow to enable the TCP_NODELAY flag on TCP sockets.
* Support for specifying server parameters via URL string, and also
support for URL strings in the oscsend and oscdump tools.
* As a result of the above, support for TCP and Unix sockets in the
oscsend and oscdump tools.
- Update to version 0.28
* Fixed build for Windows (MingW, MSVC) and Android platforms
* Fixed an implicit cast issue in C++ bindings for lo::ServerThread
* Documentation, small fixes
* Added a function to get library version information (lo_version)