binary-arch, not binary-indep depends on binary-${PACKAGE}

binary-${PACKAGE} builds architecture-dependent binaries, so should be
depended upon by binary-arch. Fixes Debian bug 744305

Signed-off-by: Matthew Vernon <matthew@debian.org>
(cherry picked from commit e760625aae8ca3c83673965234707d455e65037a)
insert 1.0-2 changelog entry into 1.1
changelog for 1.1-1
silently exit if rsbackup.ron not present
changelog for 1.1-2
Don't run cronjobs if rsbackup.cron is missing.
Merge remote-tracking branch 'mcv/debian/1.1'

This incorporates debian/changelog fixes from Debian itself.
They don't (necessarily!) reflect changes to master, for
instance Debian bug #766455 is fixed in a different way.

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