lp-1395331: fix backup plugin.
Merge pull request #1217 from ericsnowcurrently/backups-fix-plugin

lp-1395331: fix backup plugin.



(Review request: http://reviews.vapour.ws/r/526/)
WIP action supercommand: registered with main
WIP action supercommand: removed wrong notes for defined
WIP CLI action supercommand: added common and common testing
WIP supercommand: add tabbedString method for outputs
TMP API: ActionUUIDs
TMP API: stub Actions(UUIDs) on action client
TMP API tweak to stub
WIP supercommand testing

Added stubbing features and Actions call.
WIP supercommand testing: tweaked package_test
TMP API Actions by UUID tweak: removed pointer type
WIP supercommand testing tweak: fix checkHelp
WIP supercommand testing
WIP supercommand testing
WIP supercommand testing move back to UUID method until jw4's stuff lands