Merge pull request #2 from att/develop

updates from origin
Remote-tracking branch 'upstream/develop' into develop
Fixed Issue #731,

Added file type drag check for asset drag. This will fix the text drop issue where the asset overlay was popping up on dragenter.
Fixed Issue #731

text drag inside cell restored.
artifacts
Merge branch 'pr/733' into develop

Conflicts:
	htdocs/js/rcloud_bundle.min.js