Uncomment "FIXME" Google Docs nested uls test (#678)
Uncomment "FIXME" Google Docs nested uls test (#678)

no issue
- fixed via recent updates to the section parser
bustlelabs/content-kit-editor,bustlelabs/mobiledoc-kit,YoranBrondsema/mobiledoc-kit,bustle/mobiledoc-kit,bustle/mobiledoc-kit,bustlelabs/content-kit-editor,YoranBrondsema/mobiledoc-kit,bustlelabs/content-kit-editor,bustle/mobiledoc-kit,bustle/mobiledoc-kit,bustlelabs/mobiledoc-kit,bustlelabs/mobiledoc-kit,YoranBrondsema/mobiledoc-kit