enable CORS for favicon
js inclusion corrections

- we don't have 'head js' anymore, so removing function call
- include feedback.js in forums
- some reorganizarion for forums js inclusion
languages prefs clipping
prevent clipping
queue.js might be needed in forums in some cases, and it's very small, so include every time
PMs notification

before:
- forum pages check that everytime
- symfony header (loaded on every page) checks only if 10 minutes passed since last check

this lead to some annoying situations:
- on a forum page, a notification of new PMs was displayed, but not reflected in the header
- when going to a topoguide page, still no notification, until timer expires

changes:
- when forum code checks new messages, symfony vars are updated accordingly
- time changed from 10 to 5 minutes
text quoting
autocomplete: use trigger/on rather than param
prevent d3.js double minification
obsolete file
topoguide's bbcode toolbar behaviour
edition of i18n fields and tooltips
mobile css corrections