deprecation: allowEdit (#914)

* deprecation: allowEdit

* applied suggestions to verbiage

Author: breautek

README.md

@@ -307,7 +307,7 @@ Optional parameters to customize the camera settings.
 | quality | <code>number</code> | <code>50</code> | Quality of the saved image, expressed as a range of 0-100, where 100 is typically full resolution with no loss from file compression. (Note that information about the camera's resolution is unavailable.) |
 | destinationType | <code>[DestinationType](#module_Camera.DestinationType)</code> | <code>FILE_URI</code> | Choose the format of the return value. |
 | sourceType | <code>[PictureSourceType](#module_Camera.PictureSourceType)</code> | <code>CAMERA</code> | Set the source of the picture. |
-| allowEdit | <code>Boolean</code> | <code>false</code> | Allow simple editing of image before selection. |
+| ~~allowEdit~~ | <code>Boolean</code> | <code>false</code> | **Deprecated**. Allow simple editing of image before selection. |
 | encodingType | <code>[EncodingType](#module_Camera.EncodingType)</code> | <code>JPEG</code> | Choose the  returned image file's encoding. |
 | targetWidth | <code>number</code> |  | Width in pixels to scale image. Must be used with `targetHeight`. Aspect ratio remains constant. |
 | targetHeight | <code>number</code> |  | Height in pixels to scale image. Must be used with `targetWidth`. Aspect ratio remains constant. |

www/Camera.js

@@ -143,6 +143,10 @@ cameraExport.getPicture = function (successCallback, errorCallback, options) {
     const popoverOptions = getValue(options.popoverOptions, null);
     const cameraDirection = getValue(options.cameraDirection, Camera.Direction.BACK);
 
+    if (allowEdit) {
+        console.warn('allowEdit is deprecated. It does not work reliably on all platforms. Utilise a dedicated image editing library instead. allowEdit functionality is scheduled to be removed in a future release.');
+    }
+
     const args = [quality, destinationType, sourceType, targetWidth, targetHeight, encodingType,
         mediaType, allowEdit, correctOrientation, saveToPhotoAlbum, popoverOptions, cameraDirection];