[nl] Kaminari translations added

Fixes #401
use i18n_data for country_names

Fixes #400
[en-GB] Fix destory to destroy

Fixes #402
[fr] 100% translated

Fixes #403
Fixes for font-awesome changes & i18n data errors.
Correct asset requires in README

Fixes #405
Specify country mappings

Fix #404
[pl] update translation
append permitted attributes instead of redefining everything
Update fa.yml
two small fixes on it
Only set a rails default locale when it's present

Setting I18n.enforce_available_locales = true would break apps not
setting a default locale via rails config

Fixes #417
Improve Persian Language, fa.yml
ru.yml has wrong permission, fixed that
Improve Persian Language, fix grammer problem fa.yml
add yotanami commit with some changes
[fr] Fix login_as_existing translation

Fixes #423