Updated AndroidManifest to prevent Lint warnings

AndroidManifest.xml

@@ -35,13 +35,13 @@ as that of the covered work.
 
     <uses-sdk
         android:minSdkVersion="13"
-        android:targetSdkVersion="15" />
+        android:targetSdkVersion="17" />
 
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.READ_CONTACTS" />
     <uses-permission android:name="android.permission.READ_PROFILE" />
     <uses-permission android:name="android.permission.CALL_PHONE" />
-    <uses-permission android:name="android.permission.CALL_PRIVILEGED" />
+ <!--    <uses-permission android:name="android.permission.CALL_PRIVILEGED" />  -->
     <uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />
     <uses-permission android:name="android.permission.READ_PHONE_STATE" />
     <uses-permission android:name="android.permission.RECORD_AUDIO" />
@@ -52,7 +52,8 @@ as that of the covered work.
         android:debuggable="true"
         android:icon="@drawable/ic_launcher"
         android:label="@string/app_name"
-        android:theme="@style/AppTheme" >
+        android:theme="@style/AppTheme"
+        android:allowBackup="true" >
         <activity
             android:name=".client.SFLPhoneHomeActivity"
             android:label="@string/title_activity_sflphone_home"
@@ -87,7 +88,8 @@ as that of the covered work.
             </intent-filter>
         </receiver>
         <service
-            android:name=".service.SipService">
+            android:name=".service.SipService"
+            android:exported="false">
             <intent-filter>
                 <action android:name=".service.SipService" />
             </intent-filter>