Set Swift version to 5.0 in Podspec (#475)

* Make swift version 5.0

* Add Changelog entry

Co-authored-by: Michael Enger <michaelenger@users.noreply.github.com>

CHANGELOG.md

@@ -18,6 +18,7 @@ All notable changes to this project will be documented in this file. Changes not
 
 # [Unreleased]
 
+
 ## Added
 
 - Add custom headers into .ok HttpResponse. ([#500](https://github.com/httpswift/swifter/pull/500) by [@yuri-qualtie](https://github.com/yuri-qualtie)
@@ -28,8 +29,9 @@ All notable changes to this project will be documented in this file. Changes not
 
 ## Fixed
 
-* Fix misspell `serialise`. ([#473](https://github.com/httpswift/swifter/pull/473)) by [@mtgto](https://github.com/mtgto)
-* Fix an issue causing Danger was not working properly. ([#486](https://github.com/httpswift/swifter/pull/486)) by [@Vkt0r](https://github.com/Vkt0r)
+- Fix misspell `serialise`. ([#473](https://github.com/httpswift/swifter/pull/473)) by [@mtgto](https://github.com/mtgto)
+- Fix an issue causing Danger was not working properly. ([#486](https://github.com/httpswift/swifter/pull/486)) by [@Vkt0r](https://github.com/Vkt0r)
+- Set Swift version to 5.0 in podspec. ([#475](https://github.com/httpswift/swifter/pull/475)) by [@p-krasnobrovkin-tcs](https://github.com/p-krasnobrovkin-tcs)
 
 ## Changed
 

Swifter.podspec

@@ -11,6 +11,6 @@ Pod::Spec.new do |s|
   s.tvos.deployment_target = "9.0"
   s.source                = { :git => "https://github.com/httpswift/swifter.git", :tag => "1.5.0" }
   s.source_files          = 'Xcode/Sources/*.{swift}'
-  s.swift_version         = '4.2'
+  s.swift_version         = '5.0'
 
-end
+end