Update podspec to make pod trunk push work as expected

WebViewJavascriptBridge.podspec

@@ -2,11 +2,11 @@ Pod::Spec.new do |s|
   s.name         = 'WebViewJavascriptBridge'
   s.version      = '4.1.3'
   s.summary      = 'An iOS/OSX bridge for sending messages between Obj-C and JavaScript in UIWebViews/WebViews.'
-  s.homepage     = 'http://github.com/marcuswestin/WebViewJavascriptBridge'
+  s.homepage     = 'https://github.com/marcuswestin/WebViewJavascriptBridge'
   s.license      = { :type => 'MIT', :file => 'LICENSE' }
   s.author       = { 'marcuswestin' => 'marcus.westin@gmail.com' }
   s.requires_arc = true
-  s.source       = { :git => 'https://github.com/marcuswestin/WebViewJavascriptBridge.git', :tag => s.version.to_s }
+  s.source       = { :git => 'https://github.com/marcuswestin/WebViewJavascriptBridge.git', :tag => 'v'+s.version.to_s }
   s.ios.platform     = :ios, '5.0'
   s.osx.platform     = :osx
   s.ios.source_files = 'WebViewJavascriptBridge/*.{h,m}'