... and warn about unsupported options.

Thanks to Yuval Kogman <nothingmuch@woobling.org> for the patch.

... for rdiff.helper, dup.helper, example.dup and example.rdiff.

This is the only way to securely transmit the FTP password from backupninja
to duplicity.

Thanks to stefan <s.freudenberg@jpberlin.de> for the patch.
This fixes Redmine bug #658.

number of hash marks, clearly specify example settings and what the
defaults are set to.

dup: support every duplicity-supported transport with new configuration option desturl (Closes: #483712, #346040, Trac#2)

sshoptions setting (Closes: #388543)

behaviour, as proposed on
http://lists.riseup.net/www/arc/backupninja/2006-07/msg00008.html

and clarification: for a given include/exclude/vsinclude statement, they now
support EITHER globbing with '*' OR symlinks in the path.

this into the docs/examples/Changelog

can work without any passphrase ; thanks Micah for the bug report

- rdiff: it's now possible to choose exactly which vservers should be
         backed-up, as it already was with duplicity handler, with the
	 "vsnames" configuration setting

example.dup: fixed example vsnames syntax

dup: fixed erroneous gpg-related options processing; example.dup: fixed erroneous comments about the way gpg options are used

Duplicity handler example file (example.dup) : uploaded for real, this time, and added a note about symlink management weirdness in "include = " config lines.