Add new Android voice translator sample app

This adds a simple voice translator Android app that uses
the JNI bindings to the PGF C runtime.

Caveats:

- Since the C runtime doesn't compile for Android right now,
  I've bundled an old copy, along with its Java bindings.
  That should be removed once the C runtime compiels for Android
  again.

- Adding an automated build would be nice.

- Replacing the grammar requires editing a Java file, that should 
  really be more dynamic.

src/ui/android/AndroidManifest.xml

@@ -2,19 +2,21 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="org.grammaticalframework.ui.android"
     android:versionCode="1"
-    android:versionName="1.0">
+    android:versionName="1.0" >
 
     <uses-sdk
         android:minSdkVersion="8"
-        android:targetSdkVersion="8" />
+        android:targetSdkVersion="18" />
+
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
 
     <application
         android:allowBackup="true"
         android:icon="@drawable/ic_launcher"
         android:label="@string/app_name"
-        android:theme="@style/AppTheme">
+        android:theme="@style/AppTheme" >
         <activity
-            android:name="org.grammaticalframework.ui.android.MainActivity"
+            android:name=".MainActivity"
             android:label="@string/app_name" >
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />