I know many of you are as annoyed as I am by the fact that the corresponding views are not updated if you rename or delete a file with the side bar menu.
It annoyed me enough to try to fix it. Here is my code. Enjoy. https://gist.github.com/1635914
In addition, I changed the New File side bar command to immediately save the new file. I prefer that behaviour, since you then get the correct syntax set right away.
It is not a full plugin, I just updated Default/side_bar.py for simplicity.
ETA: Removed on request