=====RenameFile=====
//(Information and examples taken from the DroidScript documentation)//
====Description====
The **RenameFile** method renames a file in internal or exernal file storage.
app.RenameFile( fileName, newFileName );
----
====Example====
function OnStart()
{
var file = "/sdcard/wftest.txt";
app.WriteFile( file, "Hello" );
app.RenameFile( file, "/sdcard/wftest2.txt" );
}