assets: asset fix from invenio
recordext: record model created

* export keys modified

* data.cfg is created

* all but the first author duplicate MARC tag 700
recordext: data model updated

* model updated to remove 'enduser_...'' fields and
  re-use 'end_...'' fields
deposit: metadata processor updated
recordext: data fields independant of atlantis

* all data fields can be exported as marc without atlantis

* CDS imports still need atlantis
recordext: model for CDS imports

* separate record model for importing records from CDS
collections: collections updated

* ALICE, CMS and LHCb collections added
deposit: reproduction method upload

* export key renaming bug
deposit: updated deposit completed page

* now shows preview of record
recordext: data.cfg fixed

* fixed some naming errors for record model
deposit: duplication bug fixed

* Cannot have duplicate authors