Ultimenu (8.x-2.4) - en to unknown language translation catalogue (6 entries)

en: Development
target: Leasachadh

en: Administration
target: Rianachd

en: - None -
target: - Chan eil gin -

en: Menu
target: Clàr-taice

en: Block
target: Bloca

en: Tools
target: Innealan
