Update project template files in order allow SDK target modification.

Author: atanasovg

build/project-template/AndroidManifest.xml

@@ -6,10 +6,11 @@
 
    <uses-sdk
         android:minSdkVersion="17"
-        android:targetSdkVersion="17" />
+        android:targetSdkVersion="__APILEVEL__" />
 
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
-	<uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.INTERNET"/>
 
     <application
         android:name="com.tns.NativeScriptApplication"
@@ -30,4 +31,4 @@
         </activity>
     </application>
 
-</manifest>
+</manifest>