Change StringUtils from lang to lang3, as per https://bitbucket.org/AlanHohn/mermaid-plugin/issues/7/mermaid-plugin-incompatible-with Peter Stewart's comments.
Update Mermaid.js to 7.0.0 (copy from Mermaid.min.js)
Update mermaid.css to 7.0.0
Fix issue with StringUtils and update Confluence to 6.3.1
Change StringUtils from lang to lang3, as per https://bitbucket.org/AlanHohn/mermaid-plugin/issues/7/mermaid-plugin-incompatible-with Peter Stewart's comments.
Update Mermaid.js to 7.0.0 (copy from Mermaid.min.js)
Update mermaid.css to 7.0.0
Fix issue with StringUtils and update Confluence to 6.3.1