SAK-23349: VI-49. Hide video during fast recalling.

git-svn-id: https://source.sakaiproject.org/svn/portal/branches/SAK-23349@125685 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-23349: VI-9. Disable debug on videocall.js.

git-svn-id: https://source.sakaiproject.org/svn/portal/branches/SAK-23349@125687 66ffb92e-73f9-0310-93c1-f5514f145a0a