HubThat

Hi guys! I finally made the Updater work again!
There was a problem with Bukkit: in fact, they made a whole new system for their website, so the updater was still searching for the old system, resulting in an incongruence. With HubThat 5.2, the updates are handled by a whole new dedicated server. None of your information is stored, there's just the current HubThat version to be compared to your running one.

Plus, I fixed some little bugs I found my own and optimized a bit of the code.

In one of the next updates, I'm going to finally add the possibility to set a spawn from a world, to another one.
It's still possible, nowadays, to edit some yml files, coordinates and world names to make this happen, without the need of waiting the next update, but it's a bit tricky so I reccomend you to wait for the update to come.

Thanks for reporting me problems!