Fixing some IE8 compatibility problems about Angular declarations (it fixes the user zoom problems).

Unfortunately, all the problems encountered when using IE8 are not solved. Especially some around Angular use.

As a consequence, some features are not handled on IE8 (rating display into publication list of a folder of kmelia for example)...

Considering that this PR is a first step (but maybe the last).

(Turning read only the textarea of user name list displayed into the file sharing pop-in.)