Check for empty mutators in validated updates
Update History and banners
Update History for all the other releases too
update release file for 1.0.1
add link to www in banner
update History to note backports
Check that 'mutator' is an object
Explicitly forbid replaces from validated updates.
Clone options before mutating
Bump package version numbers
bump ddp version number
oops, some previous backports were missing
tweak banner
update manifest
update docs and examples to 1.0.1
Merge branch 'release-1.0.1'