Add a coma to .bowerrc to be a valid json file

The missing coma on the second line make the json invalid.

```
jeremy@dev-php:~/dev$ bower install

/usr/local/node/lib/node_modules/bower/node_modules/bower-config/lib/util/rc.js:55
        throw error;
              ^
Error: Unable to parse /space/home/jeremy/dev/.bowerrc: Unexpected string
```