Updates related to Defold 1.2.163 (#68)

* Removed Billing permission

* Removed information about the tracking

* Added info about IAP installation

docs/en/manuals/android.md

@@ -68,9 +68,6 @@ The Defold engine requires a number of different permissions for all engine feat
 ### android.permission.INTERNET and android.permission.ACCESS_NETWORK_STATE (Protection level: normal)
 Allows applications to open network sockets and access information about networks. These permission are needed for internet access. ([Android official docs](https://developer.android.com/reference/android/Manifest.permission#INTERNET)) and ([Android official docs](https://developer.android.com/reference/android/Manifest.permission#ACCESS_NETWORK_STATE)).
 
-### com.android.vending.BILLING
-Google Play Billing is a service that lets you sell digital content from inside an Android app, or in-app. This permission is needed for [in-app purchases](/manuals/iap/) to work.
-
 ### android.permission.WRITE_EXTERNAL_STORAGE (Protection level: dangerous)
 Allows an application to write to external storage. Starting in API level 19, this permission is not required to read/write files in your application-specific directories returned by Context.getExternalFilesDir(String) and Context.getExternalCacheDir(). This permission is needed if you intend to save/load files from disk (using io.* or sys.save/load) outside of the folder provided by [sys.get_save_file()](/ref/sys/#sys.get_save_file:application_id-file_name) and have `android:minSdkVersion` set to less than 19 in the Android manifest. ([Android official docs](https://developer.android.com/reference/android/Manifest.permission#WRITE_EXTERNAL_STORAGE)).
 

docs/en/manuals/iap.md

@@ -21,6 +21,18 @@ Detailed documentation from Apple, Google, Amazon and Facebook can be found here
 * [Amazon In-app Purchase documentation](https://developer.amazon.com/public/apis/earn/in-app-purchasing).
 * [Facebook game payments documentation](https://developers.facebook.com/docs/payments).
 
+## Installing the extension
+
+To start using the In-app purchases extension you need to add it as a dependency to your `game.project` file. The latest stable version is available with the dependency URL:
+```
+https://github.com/defold/extension-iap/archive/master.zip
+```
+
+We recommend using a link to a zip file of a [specific release](https://github.com/defold/extension-iap/releases).
+
+Documentation of the API is available on the [extension GitHub page](https://defold.github.io/extension-iap/).
+
+
 ## Testing Google Play Billing with static responses
 
 On Android it is recommended that you start implementing IAP in your app by using static responses from Google Play. This enables you to verify that everything in your app works correctly before you publish the app. Four reserved product IDs exist for testing static In-app Billing responses:

docs/ko/manuals/project-settings.md

@@ -257,8 +257,3 @@ HTTP 타임아웃(초). 기본값은 0이며 타임아웃을 비활성화 함
 ## Script
 #### shared_state
 체크하면 모든 스크립트 유형간에 단일 LUA state를 공유함, 기본값 체크됨
-
-## Tracking
-#### app_id
-프로젝트의 고유한 tracking ID. 프로젝트 tracking ID는 프로젝트 대쉬보드에서 찾을 수 있음
-