Make "make distcheck" work.

Make "make distcheck" work.

* Makefile.am: Expand some "*" wildcards, and (for now) disable
  the relatively unimportant, distuninstallcheck target.
  Fix a few redirect-directly-to-target bugs.
  Add a few $(srcdir)/ prefixes and add an uninstall-local rule.
* docs/Makefile.am: More of the same.  Split some long lines.
* python/Makefile.am: Likewise.
* python/tests/Makefile.am: Likewise.
* qemud/Makefile.am: Likewise.
* tests/Makefile.am: Remove the directories already listed in SUBDIRS.
* docs/examples/index.py: Adapt to produce the desired changes in
  docs/examples/Makefile.am. Also, sort *.c, so results are reproducible,
  and emit a comment telling emacs and vi that the file is read-only.
* docs/examples/Makefile.am: Regenerate.

Author: Jim Meyering <meyering@redhat.com>