delete options -- I was using it to cut down on the useless
suggestions, but it was failing to continue completing if the
user specified something like "--delete-after --delete" (which
is valid but superfluous). Also got rid of an accidental
option-conflict between --archive (-a) and --recursive (-r).
options. This makes sure that daemon options aren't offered
after client options, and visa versa.
- Added some missing exclusion-lists for options (that avoids
offering conflicting options to the user).
- Improved the description of a few options.
- Added some new options for the upcoming rsync 2.6.4.
- Improved the descriptions of several old options.
- Got rid of the "-- ..." options to _arguments (so that we
don't try to use the output of "rsync --help").
