Removed some CSS rules as the toolbar can now be configured through the settings

As the toolbar can now be configured through the settings.json file, these custom CSS rules can be removed
The import icons are cut off at the bottom. Can we give them a bit more space?

![screen shot 2014-07-30 at 15 13 29](https://cloud.githubusercontent.com/assets/109850/3754715/9e6417d4-181d-11e4-89d5-5fdabe9263bb.png)