Moved to Maven instead of Gradle.
Using proper project structure and package structure.

Fixed minor typos.

Moving all files to main folder.
Using Gradle to define, manage dependecies and build the project.
Upgraded Gradle wrapper.

Reviewed by: Zoey76, !UnAfraid

	* GPLv3 license update for package-info.java files.
	* Minor update to Instances.
	* Fixed #5399

	* Removed "retail" folder, all scripts are supposed to be retail except those in custom folder.
	* Moved to ai/npc folder.
	* Removed !QuestState and State, events don't need them.
	* Now extends AbstractNpcAI.
	* Unhardcoded Adena Id.
	* Added package-info for teleports and custom packages, removed documentation file.
	* Replaced array of int with Location DTO for spawns data.

	* Based on forums changelogs, DevSVN, commit messages.
	* Added author to most Java scripts.
	* Fixed most script headers !JavaDocs, try to keep it this way.

'''Note:''' I'd like to remember contributors and committers that scripts '''must''' include author.

	* Added missing license to Java files.
	* Cleanup.
	* Set GPLv3 as default header for Java files.

No commit message

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Codename - Unwanted UpdateLeaks
Changelog will be on forum (as soon as someone made it)

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