Revert "WL-1628 add checked parameter to generateSettingsControlledCheckbox"

This reverts commit 28b3a74b71f0e510ad33466cafe1020edf156e5f.
Revert "WL-1637 Default unanswered questions to tick when configurable"

This reverts commit 10aae3aca044b618ab7e363d20b772cd956896f5.
WL-1829 WL-1637 WL-1628 Set default values correctly

Fixes for WL-1637 and WL-1628 made the state of each checkbox constant.

Reverting the fixes and setting the default values correctly.
Merge pull request #9 from ox-it/WL-1829

WL-1829 Checkboxes reflect state of preferences