French translation
Allow limit to null to get the entire list of resource.

Here is my use case :

I have about 20 to 30 products, and i want all of my product on a single
page without pager or limit.

My config is

_sylius:
    paginate: false
    limit: null
    sorting: { releasedAt: desc }

Without my change i got 0 product because of the int cast inside
getLimit method
[ResourceBundle] Added german translations
Merge pull request #308 from Capenus/german-translations-part2

German translations part 2
Merge pull request #296 from amenophis/french-translation

French translation
CS fixes
Updated Spanish translations