Manual Match: add an Apply All button

this recodes all the data so that the recent saved name matches are
applied to all rows.
Bug Fix: Manual match form load error fixed

Column names were not being specified before the form was loaded.
Form Manual match: ref to 'Province' etc removed
Form manual match: Unmatched Only chk added

Toggles the View in the grid
Bug Fix: Form manual Match no rows left error fixed

the Use this buttons no longer error when there are no rows left.