Modernized the Android permission code.

This change fixes a build error which looks like this:
Could not resolve all dependencies for configuration ':_debugCompile'.
Could not find any version that matches com.android.support:support-v4

package.json

@@ -1,6 +1,6 @@
 {
   "name": "cordova-plugin-ble",
-  "version": "1.3.1",
+  "version": "1.3.2",
   "description": "Bluetooth Low Energy Cordova plugin",
   "cordova": {
     "id": "cordova-plugin-ble",

plugin.xml

@@ -3,7 +3,7 @@
 	xmlns:android="http://schemas.android.com/apk/res/android"
 	xmlns:m2="http://schemas.microsoft.com/appx/2013/manifest"
 	id="cordova-plugin-ble"
-	version="1.3.1">
+	version="1.3.2">
 
 	<engines>
 		<engine name="cordova" version=">=6.0.0" />
@@ -28,9 +28,8 @@
 		<config-file target="AndroidManifest.xml" parent="/manifest">
 			<uses-permission android:name="android.permission.BLUETOOTH" />
 			<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
-			<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+			<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
 		</config-file>
-		<framework src="com.android.support:support-v4:+" />
 		<source-file src="src/android/BLE.java" target-dir="src/com/evothings" />
 	</platform>
 

src/android/BLE.java

@@ -35,18 +35,14 @@
 import android.util.Base64;
 import android.os.ParcelUuid;
 import android.util.Log;
-import android.support.v4.content.ContextCompat;
-import android.support.v4.app.ActivityCompat;
-import android.support.v4.app.ActivityCompat.OnRequestPermissionsResultCallback;
 import android.content.pm.PackageManager;
 import android.os.Build;
 import android.Manifest;
 
 public class BLE
 	extends CordovaPlugin
 	implements
-		LeScanCallback,
-		OnRequestPermissionsResultCallback
+		LeScanCallback
 {
 	private static final int PERMISSION_REQUEST_COARSE_LOCATION = 1;
 
@@ -233,12 +229,10 @@ private void keepCallback(final CallbackContext callbackContext, byte[] message)
 		}
 	}
 
-	// Callback from ActivityCompat.requestPermissions().
+	// Callback from cordova.requestPermissions().
 	@Override
-	public void onRequestPermissionsResult(
-		int requestCode,
-		String permissions[],
-		int[] grantResults)
+	public void onRequestPermissionResult(int requestCode, String[] permissions,
+		int[] grantResults) throws JSONException
 	{
 		//Log.i("@@@@@@@@", "onRequestPermissionsResult: " + permissions + " " + grantResults);
 
@@ -267,25 +261,15 @@ private void startScan(final CordovaArgs args, final CallbackContext callbackCon
 		mScanCallbackContext = callbackContext;
 		mScanArgs = args;
 
-		//Log.i("@@@@@@@@", "Checking permission platform: " + Build.VERSION.SDK_INT + " >= " + Build.VERSION_CODES.M);
-
-		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
+		// Cordova Permission check
+		if (!cordova.hasPermission(Manifest.permission.ACCESS_COARSE_LOCATION))
 		{
-			//Log.i("@@@@@@@@", "Checking permission");
-
-			// Android M Permission check
-			if (ContextCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_COARSE_LOCATION) !=
-				PackageManager.PERMISSION_GRANTED)
-			{
-					//Log.i("@@@@@@@@", "PERMISSION NEEDED");
+			//Log.i("@@@@@@@@", "PERMISSION NEEDED");
 
-					// Permission needed. Ask user.
-					ActivityCompat.requestPermissions(
-						this.cordova.getActivity(),
-						new String[] { Manifest.permission.ACCESS_COARSE_LOCATION },
-						PERMISSION_REQUEST_COARSE_LOCATION);
-					return;
-			}
+			// Permission needed. Ask user.
+			cordova.requestPermission(this, PERMISSION_REQUEST_COARSE_LOCATION,
+				Manifest.permission.ACCESS_COARSE_LOCATION);
+			return;
 		}
 
 		// Permission ok, go ahead and start scanning.