Added content description for scan QR code icon in "add node" screen.

src/main/res/layout/scan_qr_code_widget.xml

@@ -4,4 +4,5 @@
 		android:layout_width="48dip"
 		android:layout_height="48dip"
 		android:src="@drawable/ic_qrcode"
-		android:onClick="onClick" />
+		android:onClick="onClick"
+		android:contentDescription="@string/scan_qr_code_description" />

src/main/res/values/strings.xml

@@ -155,6 +155,9 @@
 	<!-- Toast shown when trying to create a node with an empty name -->
 	<string name="node_name_required">The node name must not be empty</string>
 
+	<!-- Content description for node ID qr code icon -->
+	<string name="scan_qr_code_description">Scan QR Code</string>
+
 	<!-- WebGuiActivity -->
 
 
@@ -199,6 +202,7 @@ Please report any problems you encounter.</string>
 
 	<!-- FolderPickerAcitivity -->
 
+
 	<!-- Activity title -->
 	<string name="folder_picker_title">Folder Picker</string>