Adding MIT license to Podspec

Author: jpotts18

Swift-Validator.podspec

@@ -4,7 +4,7 @@ Pod::Spec.new do |s|
   s.summary      = "A UITextField Validation library for Swift"
   s.homepage     = "https://github.com/jpotts18/swift-validator"
   s.screenshots  = "https://raw.githubusercontent.com/jpotts18/swift-validator/master/swift-validator-v2.gif"
-  s.license      = { :type => "Apache 2.0", :file => "LICENCE.txt" }
+  s.license      = { :type => "MIT", :file => "LICENCE.txt" }
   s.author             = { "Jeff" => "jeff.potter6@gmail.com" }
   s.social_media_url   = "http://twitter.com/jpotts18"
   s.platform     = :ios