Add a roll_versions.py script and roll versions once.

sky/apk/demo/AndroidManifest.xml

Index: sky/apk/demo/AndroidManifest.xml
diff --git a/sky/apk/demo/AndroidManifest.xml b/sky/apk/demo/AndroidManifest.xml
index 205846a7e9f557c27408b2ab194c7a1f430254be..39ed421aa49cfe73bc0972a639aa20c0a5e7d646 100644
--- a/sky/apk/demo/AndroidManifest.xml
+++ b/sky/apk/demo/AndroidManifest.xml
@@ -3,30 +3,23 @@
      Use of this source code is governed by a BSD-style license that can be
      found in the LICENSE file.
  -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="org.domokit.sky.demo"
-    android:versionCode="8"
-    android:versionName="0.0.8">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="org.domokit.sky.demo" android:versionCode="9" android:versionName="0.0.9">
 
     <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="21" />
-    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.INTERNET" />
     <uses-feature android:name="android.hardware.sensor.accelerometer" android:required="true" />
 
-    <application android:icon="@mipmap/ic_launcher" android:name="SkyDemoApplication" android:label="Sky">
-        <activity android:name="SkyDemoActivity"
-                  android:launchMode="singleTask"
-                  android:theme="@android:style/Theme.Holo.Light.NoActionBar"
-                  android:configChanges="orientation|keyboardHidden|keyboard|screenSize"
-                  android:hardwareAccelerated="true">
+    <application android:icon="@mipmap/ic_launcher" android:label="Sky" android:name="SkyDemoApplication">
+        <activity android:configChanges="orientation|keyboardHidden|keyboard|screenSize" android:hardwareAccelerated="true" android:launchMode="singleTask" android:name="SkyDemoActivity" android:theme="@android:style/Theme.Holo.Light.NoActionBar">
             <intent-filter>
-                <action android:name="android.intent.action.MAIN"/>
-                <category android:name="android.intent.category.LAUNCHER"/>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
             <intent-filter>
-                <action android:name="android.intent.action.VIEW"/>
+                <action android:name="android.intent.action.VIEW" />
                 <category android:name="android.intent.category.DEFAULT" />
                 <data android:scheme="sky" />
             </intent-filter>
         </activity>
     </application>
- </manifest>
+ </manifest>