prep CocoaPods for new deploy setup

ios/MapboxGL.podspec

@@ -1,7 +1,7 @@
 Pod::Spec.new do |m|
 
   m.name    = 'MapboxGL'
-  m.version = '0.1.0'
+  m.version = '0.2.8'
 
   m.summary          = 'Open source vector map solution for iOS with full styling capabilities.'
   m.description      = 'Open source OpenGL-based vector map solution for iOS with full styling capabilities and Cocoa bindings.'
@@ -11,7 +11,7 @@ Pod::Spec.new do |m|
   m.screenshot       = 'https://raw.githubusercontent.com/mapbox/mapbox-gl-native/master/ios/screenshot.png'
   m.social_media_url = 'https://twitter.com/mapbox'
 
-  m.source = { :http => "http://mapbox.s3.amazonaws.com/mapbox-gl-native/ios/mapbox-gl-ios-#{m.version.to_s}.zip" }
+  m.source = { :http => "http://mapbox.s3.amazonaws.com/mapbox-gl-native/ios/builds/mapbox-gl-ios-#{m.version.to_s}.zip" }
 
   m.platform              = :ios
   m.ios.deployment_target = '7.0'