* Fixed an npe using /bcr setitem
* Fixed default settings.yml to include the setitem placeholders(connect gui etc)

This should also clear up the empty connect gui interface.

To update these items manually:

- Grab an item(for example a clock for timed ranks)
- Rename it however you like.
- perform: /bcr setitem timed while holding the item in hand.

Done.

/bcr setitem custom = Updating the custom ranks(connect gui)
/bcr setitem placeholder = Updating all empty slots in all gui's(default black stained glass pane)

The player statistics(esc ->stats) will now try to explain the line/statistic in question that failed.

For instance: kill_entity requires 3 inputs, (the stat itself + amount + type)
When such line has failed, it will announce this in console along with the error.