Adds german, arabic and french translations and fix custom-id

Thanks to @aneeshikmat and @simialbi!

Adds Russian translation (@valkinaz)

Merge pull request #22 from Valkinaz/russian_translate

Russian language

1.2.4

Fixes composer.json misbehaviors

Fixes travis building

1.2.3

Fixes Travis building

Adds Chinese and Persian languages and minor fixes

1.2

Fix license identifier

i18n

Adds translation capabilities. Thanks to @stupidusername.