0.2

 * Some fixes and changes in the atom lib.

 * Heavy change in the pubsub API. Now we don't have classes but only
   functions that receives a bunch of params.

 * Documentation improvements and some standard changes.

 * Defining a reference count infrastructure based in the ta_object_t
   `class'. All other classes in taningia (except ta_list_t) are using
   it now.

 * Some memory leak fixes.

 * Adding an API to send stanzas and register callbacks to be called
   when the server answers -- ta_xmpp_client_send_and_filter().

 * Coding style changes.

 * Renaming example programs, old names had no standard at all.

 * Using silent rules in build scripts.

 * Fixes in build system adding m4 directory and checks for some GNU
   extensions like strndup().

0.1 - First public release
