Initial Paper-API for Bukkit 1.13 Preview 4 - THIS IS NOT SERVER

This branch/commit is only useful to those who purely use a clean Bukkit/Spigot/Paper API
and does not use NMS/OBC references.

This will let you start updating your plugin to the latest 1.13 builds of Bukkit Preview (4 as of now)

Note that this release is not final!!! API breakages may occur!

It is up to you if you find use out of this work.

Spigot-API-Patches/Allow-plugins-to-use-SLF4J-for-logging.patch

@@ -14,7 +14,7 @@ it without having to shade it in the plugin and going through
 several layers of logging abstraction.
 
 diff --git a/pom.xml b/pom.xml
-index 13994dc2..45145c5f 100644
+index e1a39bfe..db9a57b0 100644
 --- a/pom.xml
 +++ b/pom.xml
 @@ -0,0 +0,0 @@
@@ -33,7 +33,7 @@ index 13994dc2..45145c5f 100644
          <dependency>
              <groupId>junit</groupId>
 diff --git a/src/main/java/org/bukkit/plugin/Plugin.java b/src/main/java/org/bukkit/plugin/Plugin.java
-index c4e22c62..02670254 100644
+index 55debf5d..8d2999ac 100644
 --- a/src/main/java/org/bukkit/plugin/Plugin.java
 +++ b/src/main/java/org/bukkit/plugin/Plugin.java
 @@ -0,0 +0,0 @@ public interface Plugin extends TabExecutor {