Symfony 5 support!

Hi!

Just a small release to add support for Symfony 5 and remove support for Symfony 2.x and PHP 5.5.

Have fun!

v1.9.1

• Fix symfony < 4.2 BC for transChoice #117

Fix symfony 4.2 transChoice deprecation

• Fix symfony 4.2 transChoice deprecation (#111)

Thanks @dirkkredler for their help.

Adding Symfony 4 support

Woohoo! #104

Fix romanian translation

Fix romanian translation

Add Slovak translation

• Add .gitattributes (see #95)
• Add Slovak translation (see #97)

New translation: Esparanto

New translation: Esparanto #94

Minor Turkish translation tweak

See #92

New Catalan Translations

• Just new Catalan translations! - #91

PHP 5.5 requirement, DateTimeInterface support

PHP 5.5 is now the minimum required version as of version 1.7.0.

Also:

• DateTimeInterface is now supported (so you can use DateTimeImmutable objects) (#87)
• New Finnish translation (#88)
• Polish translation pluralization bug fix (#89)