update swift version

Author: miguelangel-dev

BezierKit.podspec

@@ -10,15 +10,15 @@ Pod::Spec.new do |s|
   s.homepage     = "https://github.com/hfutrell/BezierKit"
   s.license      = "MIT"
   s.author       = { "Holmes Futrell" => "[email protected]" }
-  s.swift_version = "5.3"
+  s.swift_version = "5.0"
 
   s.ios.deployment_target = "10.0"
   s.osx.deployment_target = "10.12"
   s.ios.framework  = 'UIKit', 'CoreGraphics'
   s.osx.framework  = 'AppKit'
   #s.tvos.deployment_target = '9.0'
   #s.watchos.deployment_target = '2.0'
-  
+
   s.source       = { :git => "https://github.com/hfutrell/BezierKit.git", :tag => "v#{s.version}"}
   #s.source	  = { :git => "https://github.com/hfutrell/BezierKit.git", :branch => "#{s.version}-release"}