Add value to uom attribute for gco:Measure element in editor (https://github.com/geonetwork/core-geonetwork/issues/310).
Maybe someone with better XPATH skills can make the code shorter?
!NB Fix for old GUI only!
Merge branch 'bugfix/310-editor-uom' of github.com:kristjanr/core-geonetwork into bugfix/310-editor-uom