Possible fix for #1661
Merge branch 'master' of github.com:PocketMine/PocketMine-MP
Revert "Option to disable hitbox calculation"

This reverts commit fae330d499e705aac902e3750b089d7744acf1e0.
Moved connected flag up in the Player disconnect process
Improved initial chunk loading, do not skip near chunks, fixes world loading getting stuck