Compress invalid template

During compression, these templates show up as being *invalid*. This PR attempts to remove this warning.

```
Invalid template /usr/local/lib/python2.7/dist-packages/rest_framework/templates/rest_framework/inline/checkbox_multiple.html: Could not parse the remainder: '/field.name' from 'rest_framework/field.name'
Invalid template /usr/local/lib/python2.7/dist-packages/rest_framework/templates/rest_framework/vertical/list_fieldset.html: Could not parse the remainder: '()' from 'field.value.field_items.values()'
```