Adds a return type hint (#32)

Add a return type (#32)

... to address a deprecation notice issued by Symfony 5.x.

Allow usage with Symfony 5.x components

On the other hand, requirements have been raised to Symfony 4.4 and PHP 7.4 (#31).

Resolve a deprecation notice

... by not using a deprecated service name (#30).

Drop deprecated `\Symfony\Component\Translation\TranslatorInterface`

This release removes support for the deprecated interfaces as per #28.

Implement interfaces from `symfony/translation-contracts`

This is to ease addressing Symfony ^4.2 deprecation notices and to eventually migrate to Symfony 5.

Adds the `icu_format` filter

Add `icu_format` Twig filter (#27)

This adds a new `icu_format` Twig filter that can be used to apply ICU-based formatting to given messages.

Examples:

* `{{ '{name} will arrive shortly.' | icu_format({name: 'Peter'}) }}`
* `{{ '{gender, select, male {{name} invited you to his party!} female {{name} invited you to her party!}}' | icu_format({ gender: 'female', name: 'Jane' }) }}`

This closes #24.

Add .gitattributes

Merge pull request #18 from thePanz/patch-1

Add .gitattributes