Various changes in AndroidManifest.xml

- Launcher activity should use default theme
- Remove unnecessary permissions
- Warning fixes

android/app/src/main/AndroidManifest.xml

@@ -3,9 +3,8 @@
      com.gamemaker.game
 -->
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     package="io.github.kichikuou.xsystem35"
-    android:versionCode="1"
-    android:versionName="1.0"
     android:installLocation="auto">
 
     <!-- OpenGL ES 2.0 -->
@@ -26,10 +25,10 @@
         android:name="android.hardware.type.pc"
         android:required="false" />
 
-    <!-- Allow writing to external storage -->
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <!-- Allow reading from external storage -->
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
     <!-- Allow access to the vibrator -->
-    <uses-permission android:name="android.permission.VIBRATE" />
+    <!-- <uses-permission android:name="android.permission.VIBRATE" /> -->
 
     <!-- if you want to capture audio, uncomment this. -->
     <!-- <uses-permission android:name="android.permission.RECORD_AUDIO" /> -->
@@ -44,9 +43,8 @@
     -->
     <application android:label="@string/app_name"
         android:icon="@drawable/ic_launcher"
-        android:allowBackup="true"
-        android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
-        android:hardwareAccelerated="true" >
+        android:allowBackup="false"
+        tools:ignore="GoogleAppIndexingWarning">
 
         <!-- Example of setting SDL hints from AndroidManifest.xml:
         <meta-data android:name="SDL_ENV.SDL_ACCELEROMETER_AS_JOYSTICK" android:value="0"/>
@@ -64,6 +62,8 @@
             android:alwaysRetainTaskState="true"
             android:launchMode="singleInstance"
             android:configChanges="orientation|uiMode|screenLayout|screenSize|smallestScreenSize|keyboard|keyboardHidden|navigation"
+            android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
+            android:hardwareAccelerated="true"
             >
 
             <!-- Drop file event -->