Add number-range translations to panda apps

tests/dummy/app/i18n/translations.coffee

@@ -15,6 +15,9 @@ window.$translations =
         are_you_sure: 'Weet je dit zeker?'
         button: 'Delete'
       close: 'Close'
+      clear: 'Clear'
+      apply: 'Toepassen'
+      and: 'en'
     confirm:
       cancel: 'Cancel'
       confirm: 'Ja'
@@ -60,6 +63,11 @@ window.$translations =
         friday: 'Vrijdag'
         saturday: 'Zaterdag'
         sunday: 'Zondag'
+    number:
+      range:
+        between: 'Tussen'
+        inclusive: 'inclusief'
+        lower_larger_than_upper_error: 'beneden grens (%{lower}) mag niet groter zijn dan de boverngrens (%{upper}).'
 
 import model_translations from './translations/models'
 Ember.assign window.$translations.en, model_translations