EDIT

ref #8389: fix NPE and smaller issues in preferences

ref #8389: revert disabling of allowOverride for default selection

ref #8385: fix nomenclatural code preference page - continue

ref #8385: fix nomenclatural code preference page

deduplicate the nomenclatural code preference page in preferences menu

fix #5971 fix NPE for not existing preference

ref #5971: new main menu admin with cdm preference nomenclatural code and insert polytomous key node

ref #5971: don't allow to edit local nomenclatural code if allowOverride is false

ref #5971: minor

ref #5971: add an admin page to the prefs and add cdm pref nomenclatural code

ref #5969: add remark that the nomenclatural code preference is stored in db

ref #5969: check for db connection before ty to read the preferred nomenclatural code

ref #5969: get the preference NC from db when initialize preference store and save the changes in db

Drastically reducing code by using field editors for preferences

had to rename the packages to make them compliant with buckminster