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

Fixed minor typos.

(179) quest

Minor cleanup.

Reported by: Attila

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

party

Reported by : valanths1990

https://github.com/L2J/L2J_Server/commit/38a143a14b9298c6fba0065cd025affed64d3166

L2J/L2J_Server@2f3dca83e5317b7471ac1bf472067e9ad1a85003

Reducing object creation by using static methods.
Reducing database usage.
Cleanup.
Fixed Crystal Caverns instance check.

- Update Village Master jython script to create a QuestState in onTalk following L2J/L2J_Server@ac426d90c3f02bb4f1916f1d23314c365c306907
- Updating all use L2PcInstance#getQuestState to use the helper from Quest when possible

	* Unhardcoded some HTMLs.
	* Renamed `INSTNACEID` to `TEMPLATE_ID`.
	* Fixed missuse of template ID and instance ID in multiple instances.
	* Fixed Ranku, Demon Prince, Urban Area, Monastery Of Silence, Library Of Sages.

Reported by: !FinalDestination, !CostyKiller, JOJO

Reviewed by: Zoey76, !UnAfraid

	* Patch by: jurchiks
	* Reviewed by: xban1x

	* Removed lot of casting.

'''Note:''' If you get errors on your custom scripts after synchronizing, just check and change methods from getXXXId() to getId().

	* Removing !teleCord class using Location instead!

	* Comment fixes will be done later.
	* This is done so new patches won't be so large due new Eclipse settings on save.

	* Proper GPLv3 license.
	* Updated all Java DP files.
	* Added missing license to the following files:
		* !FirstClassTransferTalk
		* !AdminInstanceZone
	* Updated Eclipse preferences for new files (header).
		* ''Same'' settings as Core.

	* Replaced assignment of questItemIds with registerQuestItems in all Java quests.
	* Replaced L2Skill with SkillHolder.
	* Updated Instances to use new InstaceWorld class.
	* Renamed some lower/mixed case static final variables with upper case names.
	* Updated some quests with new methods for conditions, etc.
	* Replacing playSound(String) with playSound(QuestSound)
	* Fixed some minor typos.

'''Note:''' Quest contributors please review this changeset and adjust your contributions to match this changes.

	* Requires [L5565]
	* Using !ItemHolder instead of int![2].
	* Using Arrays.asList() for static lists, try to use this way too.
	* Adding method public void registerMobs(Collection<Integer> mobs, !QuestEventType... types) to L2AttackableAIScript.

	* Other warnings will be fixed later.

	* Avoiding synthetic access.
	* Avoiding potential NPEs.
	* Minor JavaDocs fixes.
	* Added some TODO tasks.

BETA: Removing backward compatibility for L2Party/L2CommandChannel if you want it skip that changeset thanks Battlecruiser

	* Cleanup of random related methods and imports.
	* Fix for FairyTrees AI with wrong parameter type wouldn't override onKill(..) method.

	* Using same Code warning/error configuration than core.
	* Fixed respective warnings and errors.
	* Fixing Extractable Skills restriction properly.
		1. Unhardcode Skills Ids.
		1. Now only Item Skills are restricted.
		1. Items with consume count won't be consumed without giving the reward.
		1. Applied to reuse time greater than 5 seconds, there is no point on restrict item skills with less reuse time.
		1. Unhardcoded system message for item reward.
	* Hellbound fixes:
		1. Hellbound should start closed at server start (level 0), thanks Trev.
		1. Quarry ClassCastException fix.
	* Q290_ThreatRemoval removed unnecessary int cast.
	* Q636_TruthBeyond proper method to get an int.
	* Skill Santa Claus' Gift - Luck(22018) typo fix.

	* Removed "Loaded quest ...", with 600 quest this will be more likely spam.
	* Changed getQuestItemsCount(itemId) == 0 and getQuestItemsCount(itemId) < 1 for !st.hasQuestItems(itemId).
	* Changed getQuestItemsCount(itemId) > 0 and getQuestItemsCount(itemId) >= 1 for st.hasQuestItems(itemId).
	* Changed st.getState() != State.COMPLETED and st.getState() == State.COMPLETED for !qs.isCompleted() and qs.isCompleted() respectively.
	* Added some JavaDocs to event mods and minor code improvement.
	* Changed switch statements with one case for if statement.
	* Changed takeItems(itemId, st.getQuestItemsCount(itemId)) for takeItems(itemId, -1) where it was possible.
	* Changed for(int npcId : NPCIDS) addKillId(npcId); for addKillId(NPCIDS); can be done in more places.
	* Unhardcoded class Id in Q401_PathToWarrior.

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

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