Documentation fixes.
Documentation fixes.

* contrib/client-side/svn_apply_autoprops.py:
  Fix svn:keyword spelling: s/Headers/HeadURL/.
  Fix documentation on how to get a copy of the GPL license.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion