add restrictions_apply and repo_process_note to archival objects
fix locales
hide EAC import option
comment out EAC downlaod button
fix maxlengths in deaccession schema
When refusing to delete a non-empty repository, leave its groups alone!
Merge pull request #553 from hudmol/52254037-hide-eac-import-export

52254037 hide eac import export
Merge pull request #552 from hudmol/add-two-fields-to-archival-objects

Add two fields to archival objects
Merge pull request #555 from hudmol/fix-deaccessions-schema

fix maxlengths in deaccession schema
Removed needless 'helper do' calls
Neaten up loading of the different backend components.
Rejig bootstrap code to make environment setting more explicit
Move exceptions to response mapping code into exceptions.rb
If we can't connect to the database, just log an error and exit
Standardise the endpoint definition of 'resolve'
Docstring fix
Standardise our handling of :id parameters when getting/updating/deleting/etc.
Standardise handle_update and handle_create calls
Standarise some of the endpoint error messages
Standardise docstrings for create/update