[FIXED SECURITY-149]

ZeroClipboard 1.3.5 is rather incompatible with 1.1.7, and various API changes were needed.

 - setText() call doesn't work until the DOM is populated, which is at some unknown time AFAICT.
   installing it via the datarequested event avoids this problem.
 - constructor now demands the element to attach to, and it's unclear if relative positioning is working or not.
 - "display: inline-block" is needed for ZeroClipboard to correctly compute the height of the element