Merge pull request #2595 from AndrewMeadows/avatar-interaction

Fix crash: don't simulate until geometry exists
Informed users who want to chat they have to log in first.
Merge pull request #2596 from ddobrev/master

Informed users who want to chat they have to log in first
Remove translations for now, but use correct translation keys for the only
translations we had (days/weeks/etc.)
Don't refer to the QM file.
Merge pull request #2598 from ey6es/master

Remove translations for now, but use correct translation keys for the on...
fix bug in gun.js: unplayed target delete sound
connect SIGNAL to SIGNAL to avoid forwarding slot
Add Collision metatype to JS script system