Update Essentials/src/config.yml
Merge pull request #280 from necrodoom/patch-28

update documation reference in config.yml
Remove references to earth2me in plugin.ymls
Merge branch '2.9' of https://github.com/essentials/Essentials into 2.9
Add debug option to XMPP
Merge branch '2.9' of https://github.com/essentials/Essentials into 2.9
Update checks differencing words or number arguments