The Bundles of Bravery drop broke my plugin, and in fixing it I allowed hardcore mode to be enabled now, so I guess you could say I... added hardcore mode?
Changes
The plugin no longer requires the hardcore option in server.properties to be disabled.
Fixes
SH-3 - The sentence for players sacrificing themselves in the settings printed to the console when the plugin is enabled is grammatically incorrect
SH-5 - The javadoc for SemiHardcore#getOfficialAddonList is missing a period
SH-6 - Respawning with hardcore hearts enabled makes the player a spectator even if they have lives left