I live in portugal so I'll probably the most informed aroud here..
But not yet. Haven't seen the news today!!
In lisbon, there's a big local party this weekend. There are thousands on the street celebrating.
This year, it's even more people on the streets.
So, it's quite normal what happened.
As for them being released with no charges, that might have a simple explanation... The Euro is just starting and there's no need to make a big deal out of it.
As soon as I have more details, i'll tell you about it.