[+] - Added
[•] - Changed

[+] - Added time related utility classes - TimeUtils, for time related methods and TimeUnit for convertig time units to ticks.


[•] - Renamed some packages (!!!!!) Please take this into consideration, server plugin and plugin dependency must be both either previous to 1.6.0 or posterior to 1.6.0.
[•] - Re-worked Cooldowns class entirely - Now cooldowns are stored to the cooldowns.yml file for cooldowns to persist across server restarts, they also can be initiated using an amount of time and a time unit from the TimeUnit class. Basically much better cooldowns system.
[•] - Fixed some GUIs related bugs and added some null checks.