I think there are some outdated files in the "Chelsea" skeleton and and also in the Github repo.
The linksWebskin="displayLinksBootstrap" tag is still in the following files:
And by the way, I think it was not really necessary to add the "dmNews/displayTypeBody.cfm" to the Github repo. This file was updated in the CMS-Plugin. The file version in the Chelsea Github repo includes still the linksWebskin="displayLinksBootstrap" tag.