Update CHANGELOG.md

Author: uerceg

CHANGELOG.md

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+### Version 4.11.0 (xxth January 2017)
+#### Added
+- Added `adid` property to the attribution callback response.
+- Added `Adjust.getAdid()` method to be able to get adid value at any time after obtaining it, not only when session/event callbacks have been triggered.
+- Added `Adjust.getAttribution()` method to be able to get current attribution value at any time after obtaining it, not only when attribution callback has been triggered.
+- Added sending of **Amazon Fire Advertising Identifier** for Android platform.
+- Added possibility to set default tracker for the app by adding `adjust_config.properties` file to the `assets` folder of your Android app. Mostly meant to be used by the `Adjust Store & Pre-install Tracker Tool` (https://github.com/adjust/android_sdk/blob/master/doc/english/pre_install_tracker_tool.md).
+
+#### Fixed
+- Now reading push token value from activity state file when sending package.
+- Fixed memory leak by closing network session for iOS platform.
+- Fixed `TARGET_OS_TV` pre processer check for iOS platform.
+- Fixed `UNITY_EDITOR_OSX` symbol usage in `AdjustEditor.cs` for Windows platform (https://github.com/adjust/unity_sdk/issues/95).
+
+#### Changed
+- Firing attribution request as soon as install has been tracked, regardless of presence of attribution callback implementation in user's app.
+- Saving iAd/AdSearch details to prevent sending duplicated `sdk_click` packages for iOS platform.
+- Updated docs.
+- Updated native iOS SDK to version **4.11.0**.
+- Updated native iOS SDK to version **4.11.0**.
+- Native SDKs stability updates and improvements.
+
+---
+
 ### Version 4.10.3 (7th December 2016)
 #### Added
 - Added method swizzling for iOS platform so that only implemented callbacks in Unity are getting implemented and called in the iOS.