Reinstated loading from template functionality.

Checklists, when saved, are saved as "bareListArrays", e.g. [{checkbox-label:'item 1'}], to the listOfChecklists localStorage
When loaded, each bareListArray element is iterated and created using createNewItem/Label() methods

A gotcha I encountered is that these newly created checkbox items cannot have the "addToCollapsableSection()" method called or it will trigger an infinite loop