updated spec

Author: vikmeup

SCLAlertView.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
  s.name = "SCLAlertView"
- s.version = "0.5.3"
+ s.version = "0.5.4"
  s.summary = "Beautiful Alert View. Written in Swift"
  s.homepage = "https://github.com/vikmeup/SCLAlertView-Swift"
  s.screenshots = "https://raw.githubusercontent.com/vikmeup/SCPopUpView/master/errorScreenshot.png", "https://raw.githubusercontent.com/vikmeup/SCPopUpView/master/successScreenshot.png"