[Rails5] Update files by `rails app:update`
What does this MR do?
Updates files touched by rails app:update command from rails 5.0 to be compatible with rails 5.0.
Why was this MR needed?
Migrating to rails 5.0
Does this MR meet the acceptance criteria?
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Changelog entry added, if necessary -
Documentation created/updated -
API support added -
Tests added for this feature/bug - Review
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Has been reviewed by UX -
Has been reviewed by Frontend -
Has been reviewed by Backend -
Has been reviewed by Database
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Conform by the merge request performance guides -
Conform by the style guides -
Squashed related commits together -
Internationalization required/considered -
End-to-end tests pass ( package-qamanual pipeline job)