Cleanup /exp command, and fix vanilla syntax issues.
Needs double checking with commandblocks with vanilla syntax.
Merge pull request #274 from GunfighterJ/2.9

Cleanup /eco, fix reset broadcast
Minor cleanup on /eco command.
Fix colour syntax message on coloured leather.
Fix eco take derp.
Fix minor /book bug (Null author)
Trim long /gc output, add /gc all
Fix book meta error message.
Add optional 2nd arg to broadcast format.
Show afk warning when pm'ing afk players.
Fix vanished leak on player matching.
Update Essentials/src/messages_se.properties
Merge pull request #275 from DMarby/patch-1

Update Essentials/src/messages_se.properties
Fix a couple of param issues.
Allow negative exp to be given
Update Essentials/src/plugin.yml
try make error message more informative
fix message
Update Essentials/src/messages_en.properties
Update Essentials/src/plugin.yml
Merge pull request #276 from necrodoom/patch-26

Update Essentials/src/plugin.yml