v2.2.1.425

Includes updates since last v2.2 dev release, these noteworthy:

• update #188: UI performance overhaul incl.:
  • use hosticon as favicon
  • bindings filter
  • ...
• script feature #183: .addEmitFilter and .addCallFilter
• bugfixes incl.:
  • #178 Copy-n-paste into console
  • remote event arg persisting
  • deeply nested comments in names
  • ...