bump version to 3.2.1

Charts.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name = "Charts"
-  s.version = "3.2.0"
+  s.version = "3.2.1"
   s.summary = "Charts is a powerful & easy to use chart library for iOS, tvOS and OSX (and Android)"
   s.homepage = "https://github.com/danielgindi/Charts"
   s.license = { :type => "Apache License, Version 2.0", :file => "LICENSE" }
@@ -11,7 +11,7 @@ Pod::Spec.new do |s|
   s.source = { :git => "https://github.com/danielgindi/Charts.git", :tag => "v#{s.version}" }
   s.default_subspec = "Core"
   s.swift_version = '4.2'
-  s.cocoapods_version = '>= 1.6.0.beta.1'
+  s.cocoapods_version = '>= 1.5.0'
 
   s.subspec "Core" do |ss|
     ss.source_files  = "Source/Charts/**/*.swift"

README.md

@@ -1,4 +1,4 @@
-**Version 3.2.0**, synced to [MPAndroidChart #f6a398b](https://github.com/PhilJay/MPAndroidChart/commit/f6a398b)
+**Version 3.2.1**, synced to [MPAndroidChart #f6a398b](https://github.com/PhilJay/MPAndroidChart/commit/f6a398b)
 
 ![alt tag](https://raw.github.com/danielgindi/Charts/master/Assets/feature_graphic.png)
   ![Supported Platforms](https://img.shields.io/cocoapods/p/Charts.svg) [![Releases](https://img.shields.io/github/release/danielgindi/Charts.svg)](https://github.com/danielgindi/Charts/releases) [![Latest pod release](https://img.shields.io/cocoapods/v/Charts.svg)](http://cocoapods.org/pods/charts) [![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage) [![Build Status](https://travis-ci.org/danielgindi/Charts.svg?branch=master)](https://travis-ci.org/danielgindi/Charts) [![codecov](https://codecov.io/gh/danielgindi/Charts/branch/master/graph/badge.svg)](https://codecov.io/gh/danielgindi/Charts)
@@ -79,8 +79,8 @@ For [Realm](https://realm.io/) support, please add `pod 'ChartsRealm'` too.
 Charts now include Carthage prebuilt binaries.
 
 ```carthage
-github "danielgindi/Charts" == 3.2.0
-github "danielgindi/Charts" ~> 3.2.0
+github "danielgindi/Charts" == 3.2.1
+github "danielgindi/Charts" ~> 3.2.1
 ```
 
 In order to build the binaries for a new release, use `carthage build --no-skip-current && carthage archive Charts`.

Source/Supporting Files/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>3.2.0</string>
+	<string>3.2.1</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>