Bump podspec version to 3.0.0

A new major release since Swift 2.0 changes are not backwards compatible for anyone using Xcode 6/Swift 1.2.

Author: jonah-williams

SwiftValidator.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "SwiftValidator"
-  s.version      = "2.1.1"
+  s.version      = "3.0.0"
   s.summary      = "A UITextField Validation library for Swift"
   s.homepage     = "https://github.com/jpotts18/SwiftValidator"
   s.screenshots  = "https://raw.githubusercontent.com/jpotts18/SwiftValidator/master/swift-validator-v2.gif"
@@ -9,7 +9,7 @@ Pod::Spec.new do |s|
   s.social_media_url   = "http://twitter.com/jpotts18"
   s.platform     = :ios
   s.ios.deployment_target	= '8.0'
-  s.source       = { :git => "https://github.com/jpotts18/SwiftValidator.git", :tag => "2.1.1" }
+  s.source       = { :git => "https://github.com/jpotts18/SwiftValidator.git", :tag => "3.0.0" }
   s.source_files  = "Validator/*.swift"
   s.frameworks   = ['Foundation', 'UIKit']
   s.requires_arc = true