- Added modifiers "C" and "E" to the include/exclude +/- rules: -C is

- Added modifiers "C" and "E" to the include/exclude +/- rules:  -C is
  the same as "-p .cvsignore", and "-pE .excl' is the same as both
  "-p .excl" and "- .excl".  As you might expect, -CE is the same as
  "-pE .cvsignore".
- Made the repeating of the -E command-line option add a second exclude
  rule: "- .rsync-excludes" (thus -E is short for "-p /.rsync-excludes",
  and -EE is short for "-pE /.rsync-excludes").