Added basic localization for timestamps

This commit implements basic localization for the timestamps in conversations and the conversation list.

// FREEBIE

_locales/en/messages.json

@@ -308,5 +308,69 @@
     "syncFailed": {
         "message": "Import failed. Make sure your computer and your phone are connected to the internet.",
         "description": "Informational text displayed if a sync operation times out."
-    }
+    },
+    "timestamp_s": {
+       "description": "",
+       "message": "now"
+    },
+    "timestamp_m": {
+      "description": "",
+      "message": "1 min"
+    },
+    "timestamp_mm": {
+       "description": "",
+       "message": "%d min"
+    },
+    "timestamp_h": {
+       "description": "",
+       "message": "1 hour"
+    },
+    "timestamp_hh": {
+       "description": "",
+       "message": "%d hours"
+    },
+    "timestampFormat_y" : {
+       "description": "",
+       "message": "MMM D, YYYY"
+    },
+    "timestampFormat_m" : {
+       "description": "",
+       "message": "MMM D"
+    },
+    "timestampFormat_d" : {
+       "description": "",
+       "message": "ddd"
+    },
+    "extendedTimestamp_s": {
+       "description": "",
+       "message": "now"
+    },
+    "extendedTimestamp_m": {
+       "description": "",
+       "message": "1 minute ago"
+    },
+    "extendedTimestamp_mm": {
+       "description": "",
+       "message": "%d minute ago"
+    },
+    "extendedTimestamp_h": {
+       "description": "",
+       "message": "1 hour ago"
+    },
+    "extendedTimestamp_hh": {
+       "description": "",
+       "message": "%d hours ago"
+    },
+    "extendedTimestampFormat_y" : {
+       "description": "",
+       "message": "MMM D, YYYY LT"
+    },
+    "extendedTimestampFormat_m" : {
+       "description": "",
+       "message": "MMM D LT"
+    },
+    "extendedTimestampFormat_d" : {
+       "description": "",
+       "message": "ddd LT"
+   }
 }

js/views/timestamp_view.js

@@ -66,45 +66,22 @@
             }
         },
         relativeTime : function (number, string, isFuture) {
-            return this._relativeTime[string].replace(/%d/i, number);
-        },
-        _relativeTime : {
-            s:  "now",
-            m:  "1 min",
-            mm: "%d min",
-            h:  "1 hour",
-            hh: "%d hours",
-            d:  "1 day",
-            dd: "%d days",
-            M:  "1 month",
-            MM: "%d months",
-            y:  "1 year",
-            yy: "%d years"
+            return i18n("timestamp_"+string).replace(/%d/i, number);
         },
         _format: {
-            y: 'MMM D, YYYY',
-            m: 'MMM D',
-            d: 'ddd'
+            y: i18n('timestampFormat_y'),
+            m: i18n('timestampFormat_m'),
+            d: i18n('timestampFormat_d')
         }
     });
     Whisper.ExtendedTimestampView = Whisper.TimestampView.extend({
-        _relativeTime : {
-            s:  "now",
-            m:  "1 minute ago",
-            mm: "%d minutes ago",
-            h:  "1 hour ago",
-            hh: "%d hours ago",
-            d:  "1 day ago",
-            dd: "%d days ago",
-            M:  "1 month ago",
-            MM: "%d months ago",
-            y:  "1 year ago",
-            yy: "%d years ago"
+        relativeTime : function (number, string, isFuture) {
+            return i18n("extendedTimestamp_"+string).replace(/%d/i, number);
         },
         _format: {
-            y: 'MMM D, YYYY LT',
-            m: 'MMM D LT',
-            d: 'ddd LT'
+            y: i18n('extendedTimestampFormat_y'),
+            m: i18n('extendedTimestampFormat_m'),
+            d: i18n('extendedTimestampFormat_d')
         }
     });
 })();