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Now checkboxes should only be used when there is a list of options
and switchboxes should be used where there is a binary choice.

behatnotneeded: Is a style change on checkboxes - the checkboxes
should still works as before so existing behat tests will suffice

Change-Id: I818b7c7e5cf786c0d51d75cab1c0993e29b3f02c
Signed-off-by: Robert Lyon <robertl@catalyst.net.nz>