Added a option to change the duration of your potions that you put.

(future of the plugin)

as can be seen that the plugin's title has been renamed to something called "mobsevent" instead of "playersevent" since what i actually planned to actually add to playersevent is stuff that i think that i wouldn't able to do until i will get more into java and get more advanced at it, so i thought of something that i really could do instead and is much more easier for me to code and not have that of mess inside the code and so i changed the name of the plugin to mobsevents only because the plugin will be mainlybased on events that should be related to mobs