Javascript work
Merge branch 'master' of https://github.com/CenterForOpenScience/osf-fileviewer
Merge branch 'master' of https://github.com/CenterForOpenScience/osf-fileviewer
Merge branch 'master' of https://github.com/CenterForOpenScience/osf-fileviewer
Cleaned up and commented file-viewer-slickgrid.js