Updated minimum iOS version

Author: Minitour

AZTabBar.podspec

@@ -5,7 +5,7 @@ Pod::Spec.new do |s|
   s.homepage     = "https://github.com/Minitour/AZTabBarController"
   s.license      = "MIT"
   s.author       = { "Antonio Zaitoun" => "tony.z.1711@gmail.com" }
-  s.platform     = :ios, "8.0"
+  s.platform     = :ios, "9.0"
   s.source       = { :git => "https://github.com/Minitour/AZTabBarController.git", :tag => "#{s.version}" }
   s.source_files  = "Sources/*.swift"
   #s.resources  = "Sources/*.xib"