re-introducing (optional) URL shortener support, resolves #58

i18n/de.json

@@ -135,5 +135,6 @@
     "Your browser does not support uploading encrypted files. Please use a newer browser.":
         "Dein Browser unterstützt das hochladen von verschlüsselten Dateien nicht. Bitte verwende einen neueren Browser.",
     "Invalid attachment.": "Ungültiger Datei-Anhang.",
-    "Options": "Optionen"
+    "Options": "Optionen",
+    "Shorten URL": "URL verkürzen"
 }

i18n/fr.json

@@ -144,5 +144,6 @@
     "Your browser does not support uploading encrypted files. Please use a newer browser.":
         "Votre navigateur ne supporte pas l'envoi de fichiers chiffrés. Merci d'utiliser un navigateur plus récent.",
     "Invalid attachment.": "Attachement invalide.",
-    "Options": "Options"
+    "Options": "Options",
+    "Shorten URL": "Raccourcir URL"
 }

i18n/pl.json

@@ -135,5 +135,6 @@
     "Your browser does not support uploading encrypted files. Please use a newer browser.":
         "Your browser does not support uploading encrypted files. Please use a newer browser.",
     "Invalid attachment.": "Invalid attachment.",
-    "Options": "Options"
+    "Options": "Options",
+    "Shorten URL": "Skróć adres URL"
 }

i18n/sl.json

@@ -144,5 +144,6 @@
     "Your browser does not support uploading encrypted files. Please use a newer browser.":
         "Tvoj brskalnik ne omogoča nalaganje zakodiranih datotek. Prosim uporabi novejši brskalnik.",
     "Invalid attachment.": "Neveljavna priponka.",
-    "Options": "Možnosti"
+    "Options": "Možnosti",
+    "Shorten URL": "Skrajšajte URL"
 }