Added ✓ to delivered messages

Closes #100
Closes #101

stylesheets/index.css

@@ -83,16 +83,3 @@ li.entry img {
   padding: 5px;
   border-radius: 3px;
 }
-
-.timestamp {
-  font-size: 0.75em;
-  display: block;
-}
-
-.incoming .timestamp {
-  color: gray;
-}
-
-.outgoing .timestamp {
-  color: whitesmoke;
-}

stylesheets/manifest.css

@@ -184,6 +184,16 @@ ul.discussion {
   width: 100%;
   float: left;
   margin-bottom: 10px; }
+  .entry .timestamp {
+    font-size: 0.75em;
+    display: block; }
+    .entry .timestamp:incoming {
+      color: gray; }
+    .entry .timestamp:outgoing {
+      color: whitesmoke; }
+  .entry.delivered .timestamp::after {
+    margin-left: 4px;
+    content: "✓"; }
 
 .bubble {
   border-radius: 16px;

stylesheets/view/_conversation.scss

@@ -19,6 +19,26 @@ ul.discussion {
   width:100%;
   float:left;
   margin-bottom:10px;
+
+  .timestamp {
+    font-size: 0.75em;
+    display: block;
+
+    &:incoming {
+      color: gray;
+    }
+
+    &:outgoing {
+      color: whitesmoke;
+    }
+  }
+
+  &.delivered .timestamp {
+    &::after {
+      margin-left: 4px;
+      content: "✓";
+    }
+  }
 }
 
 .bubble {