Death Link Description Fix

[Nixill]

When using options.json to modify the death_link option, Manual copies Archipelago' DeathLink class itself to the manual_options dict. It is this class that gets modified when, say, adding a description to the option. Since Archipelago's base class is modified, the modification is copied to all of the player's other APWorlds.

For example, my description from Manual_LEGORacers2_Nixill:

  death_link:
    # Enable death link?
    # 
    # Send a death whenever you lose, reset, or leave any race or minigame,
    # or if your game crashes.
    # 
    # If you receive a death during a race or minigame, restart that race or
    # minigame immediately.
    'false': 50
    'true': 0

... can be seen in A Link to the Past:

  death_link:
    # Enable death link?
    # 
    # Send a death whenever you lose, reset, or leave any race or minigame,
    # or if your game crashes.
    # 
    # If you receive a death during a race or minigame, restart that race or
    # minigame immediately.
    'false': 50
    'true': 0

... or Blasphemous:

  death_link:
    # Enable death link?
    # 
    # Send a death whenever you lose, reset, or leave any race or minigame,
    # or if your game crashes.
    # 
    # If you receive a death during a race or minigame, restart that race or
    # minigame immediately.
    # 
    # Note that Guilt Fragments will not appear when killed by death link.
    'false': 50
    'true': 0

... or other Manuals like Euro Truck Simulator 2:

  death_link:
    # Enable death link?
    # 
    # Send a death whenever you lose, reset, or leave any race or minigame,
    # or if your game crashes.
    # 
    # If you receive a death during a race or minigame, restart that race or
    # minigame immediately.
    'false': 50
    'true': 0

This pull request fixes that by creating a subclass of DeathLink and modifying that instead.

[nicopop]

looks logical

[silasary]

Good catch