Bumped version to 4.3.0

updated CHANGELOG

@@ -29,7 +29,7 @@ See [all tickets marked for the 4.3.0 release](https://github.com/rs/SDWebImage/
 	- Fix that 0 pixels error should be used when width OR height is zero but not AND #2160
 	- Use the synchronized to access NSURLCache and try fix the potential thread-safe problem #2174
 - Prefetcher
-	- Fix the issue that prefetcher will cause stack overflow is the input urls list is huge because of recursion function call #2196
+	- Fix the issue that prefetcher will cause stack overflow when the input urls list is huge because of recursion function call #2196
 
 #### Performance
 - View Category

 Pod::Spec.new do |s|
   s.name = 'SDWebImage'
-  s.version = '4.2.3'
+  s.version = '4.3.0'
 
   s.osx.deployment_target = '10.8'
   s.ios.deployment_target = '7.0'

@@ -15,11 +15,11 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>4.2.3</string>
+	<string>4.3.0</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>4.2.3</string>
+	<string>4.3.0</string>
 	<key>NSPrincipalClass</key>
 	<string></string>
 </dict>