Bump version to 0.27.0
Commit created from PR: Implement API 0.49 (#45)
Last commit on the branch: 5abaccce
* Implement new reload version of CommandManager#executeCommand
* Implement user block/unblock API
* Implement friend API
* Rename block/unblock route enum
* Implement start time serialization in CountdownModuleSerializer
* HttpAPIImpl#addFriend: Guild ID should be NOT NULL if method is 2
* Implement HttpAPI#getGames(int)
* Implement HttpAPIImpl#uploadFile(String, String)
* Implement new setComponent methods
* Implement ConsoleCommandSender#getLogger.
* SimplePluginClassLoader don't need to specify file at the constructor now
* Fix possible problem: Sometimes cannot get plugin file
* Fix issue: Startup failure
* Rewrite ConsoleCommandSender redirect
* Fix issue: plugin cannot be loaded
* Implement HttpAPIImpl#getPrivateMessage