SWC-1615: fix MathJax CDN
Merge pull request #1111 from jay-hodgson/release-54

SWC-1615: merge from release-53
fix make public/private button
Merge pull request #1114 from jay-hodgson/SWC-1621

SWC-1621: fix make public/private button
Merge branch 'release-54' of ssh://github.com/Sage-Bionetworks/SynapseWebClient into develop
Merge pull request #1115 from jay-hodgson/develop

merge from release-54