documentation: remove Changelog, rewrite README

The Changelog and README files were badly out of date. Remove
Changelog and replace README with a new minimal one.

Author: Uoti Urpala

AUTHORS

@@ -2,10 +2,9 @@
                                     AUTHORS
                    *****************************************
 
-NOTE: NEVER send bug reports, help and feature requests directly to the
-authors, but you're free to write mails about donating!
 
-For donation requests visit http://www.mplayerhq.hu/donations.html.
+
+NOTE: This list is outdated and incomplete.
 
 
 ___________________