[BUGFIX] Fixed NPE in TempPotionEffect, Task #40 Error - Bloodbending, Task #23 NPE - IceSpike Error - Combustion, NumberFormatException - Commands

TempPotionEffect - Error: http://www.projectkorra.com/threads/errorstacks-cause-pastebin-deletes.361/#post-3086
* Fixed NPE

Bloodbending - Error: http://www.projectkorra.com/threads/errorstacks-cause-pastebin-deletes.361/#post-3087
* Fixed error in bloodbending where targetentity somehow is in a
different world (probably by command) and that ends up causing errors

IceSpike - Error: http://www.projectkorra.com/threads/errorstacks-cause-pastebin-deletes.361/#post-3089
* Caused by not checking if removed timers contains players

Combustion - Error: http://www.projectkorra.com/threads/errorstacks-cause-pastebin-deletes.361/#post-3090
* Fixed error in combustion regarding removeAroundAPoint() with a location from a different world

Commands - Error: http://www.projectkorra.com/threads/errorstacks-cause-pastebin-deletes.361/#post-3108
* Caused by people misusing /b c thinking it is /b ch therefore
generation a NumberFormatExeception when they try pass an element as a
slot