Bump version to 0.3.1

Author: Nagasawa Hiroki

EsaKit.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "EsaKit"
-  s.version      = "0.3.0"
+  s.version      = "0.3.1"
   s.summary      = "A Swift framework for the esa.io API."
   s.homepage     = "https://github.com/pixyzehn/EsaKit"
   s.license      = "MIT"

Sources/EsaKit/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.3.0</string>
+	<string>0.3.1</string>
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 	<key>NSPrincipalClass</key>