* Test coverage for Challenges Command
* Added CompleteChallengeCommand test class
* Added Utils test class
* Added ChallengesGUI test class
* Fix code smells from sonarcloud analysis
* Added .gitignore
* Added Travis CI config file
* WIP ChallengesManager Test class
* Added ChallengesManager test class
* Removed debug
* Removed code smells.
* Added ChallengesAddon test class.
* Added onDisbale test
* Added new TryToComplete test class - WIP
Covers inventory challenges.
* Added Island Challenge entity tests to TryToComplete test class
This is old change that was declined (#105), but unfortunately it is necessary.
If every ID is based on world names, than addon cannot process "/" in it. It mean that worlds cannot be put into different folders.
This change will fix it, but it is not completed.
In progress.
There does not exist converter, so old data is not usable with this version.
Implement all methods that were only placeholders.
Remove all unnecessary old methods.
Implement new methods in all classes.
User and Admin command now opens new GUI.