Feature added: IAEA menu

Signed-off-by: Kresimir Nikolic <kresimir.nikolic@gmail.com>
Feature update: IAEA Menu, Publications and Documents added. Panel Pages: Publication page added.

Signed-off-by: Kresimir Nikolic <kresimir.nikolic@gmail.com>
Removed field folder from file entity form.
Merge branch 'master' of github.com:iaea/iaea-responsive