Adjusted the collapsing of emulation in admin panel

Signed-off-by: emanuele <emanuele45@gmail.com>
Get rid of latest-packages.js

Signed-off-by: emanuele <emanuele45@gmail.com>
latest-themes.js is history

Signed-off-by: emanuele <emanuele45@gmail.com>
latest-support.js is apparently not even used in 2.0...

Signed-off-by: emanuele <emanuele45@gmail.com>
and latest-smileys.js as well along with some text strings I forgot before

Signed-off-by: emanuele <emanuele45@gmail.com>
Some love to fieldsets in regard to expand/collapse

Signed-off-by: emanuele <emanuele45@gmail.com>