closes #2537
closes #2538
updated deps
fix mark topic notifications read on enter
use validator.escape
#2532 renamed to "socket.io:transports"

Sample config:

"socket.io": {
"transports": ["websocket"]
}
removed app.loadConfig
closes #2528
fix reconnection for socket.io 1.x
closes #2529
faster getTeasers
fix acp for header changes
closes #2476
one less query in privileges.topics.get
show monthly page views
show 24 hours in traffic graph
closes #2530