A fairly large and major update here, adding all features requested so far!

Changelog:

• Bumped config version to v3 due to significant changes and additions
  • You will have to generate a new config and copy over your old values!
• Added a configurable Dragon respawn cooldown (#19)
• Added Dragon bossbar customisation (#8)
  • You can change the name, colour, and style
• Added Dragon Egg respawn chance config option (#17)
  • Suggested by Kevin_007
• Added Dragon Egg respawn announcement message config option
  • Allows players to know when an Egg has spawned
• Added bStats
  • This is anonymous collection of interesting information regarding your use of the plugin, which you can opt out of in its config
  • bStats is trusted and used by huge plugins like WorldEdit
• Improved performance when finding players in the End
• Made the defeat announcement the first thing to happen out of all the features of the plugin
• Refactored underlying config system
• Made minor code improvements
• Reduced plugin .jar file size (~750KB -> ~50KB)