GUACAMOLE-38: Make placeholder translatable.

extensions/guacamole-auth-quickconnect/src/main/resources/templates/quickconnectField.html

@@ -2,7 +2,7 @@
 <div class="header" ng-controller="quickconnectController">
     <div class="quickconnect-container">
         <form ng-submit="quickConnect()">
-            <input type=text class="quickconnect-field" placeholder="Enter Connection URI" ng-model="uri" />
+            <input type=text class="quickconnect-field" placeholder="{{'QUICKCONNECT.FIELD_PLACEHOLDER_URI' |translate}}" ng-model="uri" />
         </form>
     </div>
     <button class="quickconnect-button" ng-click="quickConnect()">Connect</button>

extensions/guacamole-auth-quickconnect/src/main/resources/translations/en.json

@@ -2,6 +2,10 @@
 
     "DATA_SOURCE_QUICKCONNECT" : {
         "NAME" : "QuickConnect"
+    },
+
+    "QUICKCONNECT" : {
+        "FIELD_PLACEHOLDER_URI" : "Enter Connection URI"
     }
 
 }