Merge branch 'hotfix/sastry-python-quickfix'
merge 06629b5 from develop
workaround for file upload bug

larger file uploads can fail in Chrome (#984)
this may be an Rserve bug
uploading in smaller chunks avoids the problem
Merge branch 'hotfix/chunk-size-workaround' into develop

Conflicts:
	htdocs/js/rcloud_bundle.min.js