Hardcore Lite - You Die You Lose a Heart (LifeDrain)

New

*   New gamerule minHearts (default 0): players can't go below this amount of hearts
    *   0: players become spectators when they lose their last heart (same as before)
    *   greater than 0: players never drop below this amount of hearts and are never made spectators
*   New gamerule goldenAppleRestoresHearts (default false): normal golden apples also restore lost hearts, but only up to 10 hearts. Enchanted golden apples still go up to maxHearts.
*   New command: /playerhearts get \[<targets>\] shows the current hearts of a player (with a single target the hearts are returned, so the value can be used with /execute store)
*   New command: /playerhearts set <numberHearts> \[<targets>\] sets the hearts of a player (the short form /playerhearts <numberHearts> \[<targets>\] still works)
*   Chat messages when you lose or gain a heart, and a message to everyone when a player loses their last heart
*   Added German translation for the gamerule descriptions

Fixes

*   Only deaths in survival and adventure mode cost a heart (no more lost hearts in creative or spectator mode, e.g. through /kill or the void)
*   /playerhearts:
    *   feedback now goes to whoever ran the command (also works from the server console and command blocks)
    *   returns the number of changed players, so it works with /execute store
    *   only accepts players as targets
    *   shows an error when run from the server console without a target
*   Hearts are no longer lost when another mod cancels the death (e.g. revive mods)
*   The heart capability is now registered correctly
*   Removed duplicate registration of Forge's /config command

Changes

*   canRestoreHearts is the main switch: when it is false, no golden apple gives hearts
*   /playerhearts only accepts values between minHearts (at least 1) and maxHearts
*   /playerhearts: the target player is notified when someone else changes their hearts