AndroidJavaException: java.lang.SecurityException: Requires VIBRATE permission

I've written a small plugin that requires me to use the Vibrate permission inside my program. I have placed my jar file inside Assets/Plugins/Android along with an AndroidManifest.xml file which can be seen below:

 <?xml version="1.0" encoding="utf-8"?>
  <manifest
      xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.unity3d.player"
      android:installLocation="preferExternal"
      android:versionCode="1"
      android:versionName="1.0">
      <supports-screens
          android:smallScreens="true"
          android:normalScreens="true"
          android:largeScreens="true"
          android:xlargeScreens="true"
          android:anyDensity="true"/>     
      <application
          android:theme="@android:style/Theme.NoTitleBar"
          android:icon="@drawable/app_icon"
          android:label="@string/app_name"
          android:debuggable="true">
          <activity android:name="com.unity3d.player.UnityPlayerActivity"
                    android:label="@string/app_name">
              <intent-filter>
                  <action android:name="android.intent.action.MAIN" />
                  <category android:name="android.intent.category.LAUNCHER" />
              </intent-filter>
              <meta-data android:name="unityplayer.UnityActivity" android:value="true" />
          </activity>
      </application>
      <uses-permission android:name="android.permission.VIBRATE" />
  </manifest>

The issue that I am having is whenever I build and push the app to the device I check the logcat and I am getting permission issues for VIBRATE. Why are these permissions not propagating to the application if my Manifest file in the the correct location, have I done something wrong?