World State Checkpoints Mod for Minecraft 1.5.1

World State Checkpoints Mod Features:

Access the checkpoints menu by pressing F6 (this can be changed on the regular controls screen)
Save checkpoints (snapshots) of your world.
Auto-save mode with GUI and configurable auto-save time increments.
Press F7 (configurable) to quick-save a...
World State Checkpoints Mod for Minecraft 1.5.1