v0.8.1: Minor patches

Patches

• You can now switch between playing and spectating in a room! This should make for a much more streamlined experience.
• Flash animations should now appear again in the Portals map
• It should no longer be possible to make an account with an empty username
• Made the outside of the level darker to be less distracting
• Fix replays from leaderboards not loading properly
• Fix level metadata not updating at all when a new level is loaded into the level editor
• Fix bug where entities cannot be moved pass the initial level boundaries in the UI
• Classic: Removed some overly long spawn delays for some maps to play better
• A big number of internal fixes and improvements