development: updated default tintColor and titleColor of Button to Color.blue.base

Sources/iOS/Button.swift

@@ -104,6 +104,16 @@ open class Button: UIButton, Pulseable {
         didSet {
             setTitle(title, for: .normal)
             setTitle(title, for: .highlighted)
+            
+            guard nil != title else {
+                return
+            }
+            
+            guard nil == titleColor else {
+                return
+            }
+            
+            titleColor = Color.blue.base
         }
     }
     
@@ -122,6 +132,7 @@ open class Button: UIButton, Pulseable {
      */
 	public required init?(coder aDecoder: NSCoder) {
 		super.init(coder: aDecoder)
+        tintColor = Color.blue.base
 		prepare()
 	}
 	
@@ -133,6 +144,7 @@ open class Button: UIButton, Pulseable {
      */
 	public override init(frame: CGRect) {
 		super.init(frame: frame)
+        tintColor = Color.blue.base
 		prepare()
 	}
 	

Sources/iOS/PageTabBarController.swift

@@ -160,7 +160,7 @@ open class PageTabBarController: RootController {
         prepare()
     }
     
-    public init(viewControllers: [UIViewController], selectedIndex: Int) {
+    public init(viewControllers: [UIViewController], selectedIndex: Int = 0) {
         isBounceEnabled = true
         super.init(rootViewController: UIPageViewController(transitionStyle: .scroll, navigationOrientation: .horizontal, options: nil))
         self.selectedIndex = selectedIndex