Support API level 3

AndroidManifest.xml

@@ -4,7 +4,7 @@
     android:versionCode="11"
     android:versionName="2.4">
     
-    <uses-sdk android:minSdkVersion="4" android:targetSdkVersion="17" />
+    <uses-sdk android:minSdkVersion="3" android:targetSdkVersion="17" />
     
     <uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
     <uses-permission android:name="android.permission.INTERNET"></uses-permission>