879416 babel -- the power of babel compells me

This updates Babel to 0.9.6.

If you have 0.9.6 installed, you'll need to uninstall it first. Before applying this patch, run the shell, import babel and print the version. If it does this, then you need to uninstall it from your virtual environment (this probably only affects me and @rlr):

```
$ ./manage.py shell
>>> import babel
>>> babel.__version__
'0.9.6'
>>>
```

After you've made sure you're not running 0.9.6, then apply this patch and it should do the above. Plus the following work correctly now:

```
$ ./manage.py extract
$ ./manage.py merge
```

r?