Fixed bug where things that were bulk-drawn did not fade when enemy died.

Fixed this by not drawing bulk-draw elements when enemy died.
Added helpers for trailer recording.

Disabled, but keeping them in the code just in case.

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GAME SHOULD BE STABLE AND WORKING AT THIS POINT.
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Insta-win key can now only be activated with dev=true.

Removing concept of ranks for victory-types. Gold clears, silver clears,
etc.
Summary state now displays ranks correctly.

Also added a help icon with a hover overlay to explain ranks.
Added Challenge Mode explanation when player first clicks the mode.

Removed explanation from main tutorial. Also made the explanation itself
simpler, no longer mentioning details like increased enemies and stronger
bosses. The goal is to reduce the amount of unnecessary text.
Added quest game state and quest button.

Quests have not yet been added to the main game.
Added hover overlay to quests.

Added quests to save state.