Adding the notion of 'labelfield' definition for preside objects - i.e. don't want to use the default 'label' field
Very basic selectData usage for the new labelfield concept.
Further work around selecting label fields, can now do like select column.
Throwing a suitale error when attepting to select the label field of an object with no label field
Tweaking data manager grid listing and object pickers to use the new  technique
Making the label field for the core page object be called 'title'

Far less confusing
Fixing tests for renamed label field for the page object