Fix tests (broken translation string)
Release notes
WTI pull
Show custom field answer in listing page
Finetune custom field answer layout
new translations
Custom field and options are sortable by priority
Sort also answers
Hopefully fix Travis' rake dependency
Hopefully fix Travis' rake dependency
Add new image folder in public/system to ignore
Merge branch 'master' into develop

Conflicts:
	config/locales/en.yml
List custom fields
SortByProprity

- Module for sorting by `sort_priority`
- Nil acts as 0
Selected dropdown option
Remove custom field