Fix broken tests caused by locale configuration (#1875) ...

* Fix broken tests caused by locale configuration

- Add LocaleSet
- Add LocaleFormatter to force proper string formats
- Rename I18n formats to use hyphen
- Add rake task for updating existing languages on DB
- Fix instances of US english in the templates

* Fix FastGettext initializer loader

* Add Amazon S3 creds for Travis

* Revert "Add Amazon S3 creds for Travis"

This reverts commit 366c1a7.

* Fix Faker localization for rake tasks

Was breaking rake db:seed file

Refactor how Template upgrade customization works (#1856) ...

* Refactor how Template upgrade customization works

- Added position_in_parent to child-records Phase, Section, and Questions
- Extracted upgrade_customization! into its own service object

wip: rebasing on development

wip: pushing to Ghub

wip: Template upgrade customisation service working

Add migration to update versionable_id for records

* Fix bug in org swaps test

Test was failing because JS wasn't executing fast enough in test browser

* Refactor how locales are set in specs

* Fix bug in plan exports caused by git merge

The routes weren't merged properly which seems to have caused a regression error

* Add documentation for SectionSorter

* Update rubyzip and re-instate Bundle Audit

This was disabled because it was failing the Travis CI script. Since there wasn't a
new version of the rubyzip gem to upgrade to, we couldn't turn the error off.

* Add length constraints to versionable_id

* Add length constraints to versionable_id

* Fix bug in ActsAsSortable module

... I have no idea why those issues haven't popped up before now!?

* Fix random bug in I18n

* Move versioning ID migration into own rake task

Refactor how section ordering is handled (#1837) ...

* Extract template customizations into own controller

* Refactor Template model methods

* Fix view logic in draggable sections

* Add button for customising phase

* Fix rubocop violations in GuidanceService

* Rename GuidanceService to GuidancePresenter

* Fix bug in phase preview order sections

* Refactor preview action/controller code

* Fix Section ordering in various views

* Fix rubocop violations

* Fix bug forcing Phases to be modifiable

* Fix broken tests

* Update method to check if section is draggable

* Extract copy action into its own resource

* Extract customization transfers to own controller

* Remove redundant routing condition

* Fix Rubocop violation issues

* Change condition for section draggable

* Refactor instance variable in PlansController

* Fix broken tests

* Add test support for 'de' locale

* Fix merge issue in plans controller

* Fix broken specs in plan#request_feedback