added start of XML-RPC server.
This code is heavily based on The Incutio XML-RPC Library for PHP.
Changes by me:
- Renamed classes to make them more descriptive
- Added phpdoc documentation
- fixed a couple of bugs that are also reported upstream
- put the whole thing under GPL v2
- made it to confirm coding guidelines of mvblog
- Make it PHP5 newstyle class based
I need to redo the introspection class because I really like
the idea to specify the parameter count and type for methods.
All work done will be forwarded upstream like the bugfixes in this
one are sent upstream.
Re #104
