* notes/diff-optimizations.txt: New file. Inspired by this thread:    http://svn.haxx.se/dev/archive-2011-02/0490.shtml    and some further thoughts.
* notes/diff-optimizations.txt: New file. Inspired by this thread:
   http://svn.haxx.se/dev/archive-2011-02/0490.shtml
   and some further thoughts.

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