Added Icelandic as supported language

refs https://github.com/TryGhost/Product/issues/2795

- the translations have existed for a while but they were never in the
  list of supported locales
- this adds the language to that list

ghost/i18n/lib/i18n.js

@@ -15,6 +15,7 @@ const SUPPORTED_LOCALES = [
     'hr', // Croatian
     'hu', // Hungarian
     'id', // Indonesian
+    'is', // Icelandic
     'it', // Italian
     'ko', // Korean
     'ja', // Japanese

ghost/i18n/locales/context.json

@@ -248,4 +248,4 @@
     "{{memberEmail}} will no longer receive this newsletter.": "A message shown when a user unsubscribes from a newsletter",
     "{{memberEmail}} will no longer receive {{newsletterName}} newsletter.": "A message shown when a user unsubscribes from a newsletter",
     "{{trialDays}} days free": "A label for free trial days"
-}
+}

ghost/i18n/locales/is/comments.json

@@ -0,0 +1,72 @@
+{
+    "{{amount}} characters left": "",
+    "{{amount}} comments": "",
+    "{{amount}} days ago": "",
+    "{{amount}} hours ago": "",
+    "{{amount}} minutes ago": "",
+    "{{amount}} months ago": "",
+    "{{amount}} seconds ago": "",
+    "{{amount}} weeks ago": "",
+    "{{amount}} years ago": "",
+    "1 comment": "",
+    "Add comment": "",
+    "Add context to your comment, share your name and expertise to foster a healthy discussion.": "",
+    "Add reply": "",
+    "Already a member?": "",
+    "Anonymous": "",
+    "Become a member of {{publication}} to start commenting.": "",
+    "Become a paid member of {{publication}} to start commenting.": "",
+    "Cancel": "",
+    "Comment": "",
+    "Complete your profile": "",
+    "Delete": "",
+    "Deleted member": "",
+    "Discussion": "",
+    "Edit": "",
+    "Edit this comment": "",
+    "Edited": "",
+    "Enter your name": "",
+    "Expertise": "",
+    "Founder @ Acme Inc": "",
+    "Full-time parent": "",
+    "Head of Marketing at Acme, Inc": "",
+    "Hide": "",
+    "Hide comment": "",
+    "Jamie Larson": "",
+    "Join the discussion": "",
+    "Just now": "",
+    "Local resident": "",
+    "Member discussion": "",
+    "Name": "",
+    "Neurosurgeon": "",
+    "One day ago": "",
+    "One hour ago": "",
+    "One minute ago": "",
+    "One month ago": "",
+    "One week ago": "",
+    "One year ago": "",
+    "Reply": "",
+    "Reply to comment": "",
+    "Report": "",
+    "Report comment": "",
+    "Report this comment": "",
+    "Report this comment?": "",
+    "Save": "",
+    "Sending": "",
+    "Sent": "",
+    "Show": "",
+    "Show {{amount}} more replies": "",
+    "Show {{amount}} previous comments": "",
+    "Show 1 more reply": "",
+    "Show 1 previous comment": "",
+    "Show comment": "",
+    "Sign in": "",
+    "Sign up now": "",
+    "Start the conversation": "",
+    "This comment has been hidden.": "",
+    "This comment has been removed.": "",
+    "Upgrade now": "",
+    "Yesterday": "",
+    "You want to report this comment?": "",
+    "Your request will be sent to the owner of this site.": ""
+}

ghost/i18n/locales/is/portal.json

@@ -74,6 +74,7 @@
     "Less like this": "Minna af þessu tagi",
     "Make sure emails aren't accidentally ending up in the Spam or Promotions folders of your inbox. If they are, click on \"Mark as not spam\" and/or \"Move to inbox\".": "Gakktu úr skugga um að tölvupóstanir endi ekki í möppum fyrir ruslpósta eða kynningarefni. Ef svo er skaltu smella á \"Mark as not spam\" og/eða \"Move to inbox\"",
     "Manage": "Stjórna",
+    "Memberships unavailable, contact the owner for access.": "",
     "Monthly": "Mánaðarlega",
     "More like this": "Meira af þessu tagi",
     "Name": "Nafn",
@@ -86,8 +87,8 @@
     "Plan": "Áskriftarleið",
     "Plan checkout was cancelled.": "Hætt var við kaup á áskrift",
     "Plan upgrade was cancelled.": "Hætt var við breytingu á áskriftarleið",
-    "Please fill in required fields": "Vinsamlegast fyllið í nauðsynlega reiti",
     "Please contact {{supportAddress}} to adjust your complimentary subscription.": "Vinsamlegast hafið samband við {{supportAddress}} til að breyta kaupbætisáskrift.",
+    "Please fill in required fields": "Vinsamlegast fyllið í nauðsynlega reiti",
     "Price": "Verð",
     "Re-enable emails": "Fá tölvupósta að nýju",
     "Renews at {{price}}.": "Endurnýjast á verðinu {{price}}",
@@ -141,9 +142,10 @@
     "You're not receiving emails": "Þú færð ekki tölvupósta",
     "You're not receiving emails because you either marked a recent message as spam, or because messages could not be delivered to your provided email address.": "Þú færð ekki tölvupósta ýmist vegna þess að þú merktir síðustu skilaboð sem ruslpóst eða vegna þess að ekki er hægt að senda skilaboð á netfangið sem þú gafst upp.",
     "You've successfully signed in.": "Þér tókst að skrá þig inn",
+    "You've successfully subscribed to": "",
     "Your account": "Aðgangurinn þinn",
     "Your input helps shape what gets published.": "",
     "Your subscription will expire on {{expiryDate}}": "Áskrift þinni lýkur {{expiryDate}}",
     "Your subscription will renew on {{renewalDate}}": "Áskrift þín verður endurnýjuð {{expiryDate}}",
-    "Your subscription will start on {{subscriptionStart}}": "Áskrift þín hefst {{subscriptionStart}"
+    "Your subscription will start on {{subscriptionStart}}": "Áskrift þín hefst {{subscriptionStart}}"
 }