some whitespace fixes
This should work, can't test: room flags passed in room info message instead of just 'in-game' state, including 'in-game', 'restricted joins', 'registered only' and 'passworded' flags
fix underwater-skipping bug and make air-strike missiles submersible when fired from within weSea
fixes to chat input history: remember all inputs, don not remember duplicates
chat: fix some glitches, add /togglechat command for changing chat visibility