Fix Flutter Gallery to use title case

@HansMuller

examples/flutter_gallery/android/AndroidManifest.xml

@@ -8,7 +8,7 @@
     <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="21" />
     <uses-permission android:name="android.permission.INTERNET"/>
 
-    <application android:icon="@mipmap/ic_launcher" android:label="Flutter gallery" android:name="org.domokit.sky.shell.SkyApplication">
+    <application android:icon="@mipmap/ic_launcher" android:label="Flutter Gallery" android:name="org.domokit.sky.shell.SkyApplication">
         <activity android:configChanges="orientation|keyboardHidden|keyboard|screenSize" android:hardwareAccelerated="true" android:launchMode="singleTask" android:name="org.domokit.sky.shell.SkyActivity" android:theme="@android:style/Theme.Black.NoTitleBar">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />