The driver had been returning status information for suppressed items, which is not expected behavior. Suppressed items should not appear to the public. This change suppresses them from appearing in VuFind.

- Resolves VUFIND-1223.

Voyager: fetch return date only for items that have the ’Discharged’ status and simplify the date/time handling. (#935)

- Requires significant rearrangement of table object constructors for consistency.

- Improves forward-compatibility with ZF3.

- Added support for fetching VuFind account in ILS login primarily by the patron ID that the ILS driver returns. This allows long-term consistency if other user details like barcodes change.
- Note that this new field is currently ONLY populated when ILS authentication is used; it is ignored under other circumstances.

Added en-gb.ini to CreatorRoles and HoldingStatus so that the translation of these text domains work also when ’en’ is not the fallback language.

- Mostly cosmetic adjustments
- Hides some bulk action controls (unlikely to be used in mobile) to save real estate

# Conflicts:
#	languages/fr.ini