Added the feature of being nearly invincible after the usage of "/mightyinvis" (except commands like "/kill")
Added the effect of strength on a high level to "/mightyinvis"
Using "/mightyvis" will cause the removal of your armor
Added a command for removing potion effects "/clearpotion [player]" (player is optional) -> usable via console too
Added the feature of not being the target of hostile mob attacks according to the usage of "/mightyinvis" (however slimes, magmacubes and pigzombies make an exception)
It works only for online players at the moment
"magic traps" resets itself according to a restart
"opa" doesn't work in realtime but you can reload the inventory
