Revert "Revert "Add option to dropzone for disabling preview""
Revert "Revert "Add option to dropzone for disabling preview""

This reverts commit 04a71a478886e757aea1e53760f67a013567f7a1.

pluralsight/guides-cms,paulocheque/guides-cms,pluralsight/guides-cms,paulocheque/guides-cms,pluralsight/guides-cms,paulocheque/guides-cms