New features:
Now you can edit default recipe for extra heart.
(In config.yml: recipe.ingredients)
WARNING! After you change recipe, you must /reload or restart server to take changes. In /lifesteal showrecipe changes will be shown right after /lifesteal reload.
If you join with 1 heart, you will get banned and kicked, if you have more than 1 heart in config, you should get unbanned but i working on this feature because it doesn't work on 100%.

Bugfixes:
After death at two hearts, you didn't get kicked after you got ban.
If you unban person at 1 heart, the person can be killed by other player and get unlimited amount of hearts (not at all).