Fix request #4077 - IE7: js typo bug

Change-Id: Id81831ad08548e440ae1109da15319f7bfb89d15
Fix request #4081: remove type hinting for QRCode

Change-Id: I3fd4fd9078b1f5825f37f92a755c99b8f6cbc6eb
This is Tuleap 6.1.99.34

Change-Id: Ibcd806aaa1e26072b3a2ed6db089d32a6edc6568