en to en_GB translation catalogue (3 entries)

[ctx: DeviceTab|]
en: The selected device is recognized as <b>$VIDEODEVICE</b> under Video Import.
en_GB: The selected device is recognised as <b>$VIDEODEVICE</b> under Video Import.

[ctx: FrameView|]
en: Pre poll command does not exists
en_GB: Pre-poll command does not exists

[ctx: QtFrontend|]
en: Failed to initialize audio driver
en_GB: Failed to initialise audio driver
