Do not hijack returnto value in upload link (.noHijack)

The login page as stated in story 359 should show a different title
when the user is pushed there from the donate link in the main menu

The menu link is currently hijacked and replaced with a returnto which
points to the current page rather then Special:DonateImage

presence of noHijack class turns this off

Change-Id: I2cd21b4b5cab8b10564ab4b4192425d05fba119d