It doesn't look very good for "native" apps to overscroll when scrolling. Would be nice to have a BrowserWindow option to disable overscroll

![untitled12](https://cloud.githubusercontent.com/assets/170270/15033357/fc36e32e-1293-11e6-8cdc-6c17b0f504dd.gif)
## 
- Electron version: 0.37.8
- Operating system: OS X 10.11.4

atom/renderer/atom_renderer_client.cc
v8::Handle<v8::Context> context) {
  
  bool first_time = node_bindings_->uv_env() == nullptr;
  
  if (first_time) {
    node_bindings_->Initialize();
    node_bindings_->PrepareMessageLoop();
  }
  
  node::Environment* env = node_bindings_->CreateEnvironment(context);
  
  atom_bindings_->BindTo(env->isolate(), env->process_object());
  
  node_bindings_->LoadEnvironment(env);
  if (first_time) {
    
    node_bindings_->set_uv_env(env);
    
    node_bindings_->RunMessageLoop();
  }
}
void AtomRendererClient::WillReleaseScriptContext(
    v8::Handle<v8::Context> context) {
  node::Environment* env = node::Environment::GetCurrent(context);
  mate::EmitEvent(env->isolate(), env->process_object(), "exit");
}
bool AtomRendererClient::ShouldFork(blink::WebLocalFrame* frame,