The datamodel and implementation supports multiple imports from different locations
This Commit removes a test and fixes the validation, which is not supported in the datamodel

- Updates (most) texts to goobs proposal
- Moved texts to localization file
- Fixed file-upload buttons

…_files

# Conflicts:
#	app/controllers/users_controller.rb
#	app/models/photo.rb
#	app/models/user.rb
#	app/services/migration_service.rb
#	app/uploaders/exported_photos.rb
#	app/uploaders/exported_user.rb
#	app/uploaders/secure_uploader.rb
#	lib/archive_importer.rb
#	lib/tasks/accounts.rake
#	spec/models/user_spec.rb

On profile file upload the same fields in the user table are used than for generated exporting files.
This conflicts if any export files exists and user wants to import something