Quick fix to enable adding CBDViewController via Storyboard.

CardboardSDK/CBDViewController.mm

@@ -119,6 +119,16 @@ @implementation CBDViewController
 
 @dynamic view;
 
+// Call designated initializer for Storyboard
+- (id)initWithCoder:(NSCoder *)decoder
+{
+    // Need to add this in order to make the tabbar icon work properly
+    if(self = [super initWithCoder:decoder])    {
+
+    }
+    return self.init;
+}
+
 - (id)init
 {
     self = [super init];