Merge branch 'mdw/gstdecode'

* mdw/gstdecode:
  Add documentation and administrivia about `disorder-gstdecode'.
  server/gstdecode.c: Produce the configured sample format directly.
  server/gstdecode.c: Allow user to tweak the various parameters.
  server/gstdecode.c: New program, like `disorder-decode'.

Conflicts:
	.gitignore
	CHANGES.html
	README
	debian/control