UpdateChecker: do not warn if the distant version is lower than the local version

[TheGreyDiamond]

This is probably not supposed to be like that.

[AmauryCarrade]

We use a Spigot API to retrieve the latest version of the plugin and the version take a few hours to update.

So, not our fault and the problem will disappear soon. :)

[TheGreyDiamond]

Okay, good to know, maybe you should consider adding a check to not display that message if the version is higher.

[AmauryCarrade]

That could be an idea yeah. I'll transfer this issue to the QuartzLib repo, where the update checker actually is :) .