Update so many dependencies, merge Forge/Fabric for final jar (#1651)

* Update so many dependencies, merge Forge/Fabric for final

* Clean up contrib docs for Gradle change

* Fix setting compat flags while using toolchain

* Fix deprecation in doc printer

* Restore proper forge JAR name

* Add dist classifier for mod jar

* Properly relocate new bStats

* Fix jar used from fabric

* Fix fabric bom

* Dup the shaded classes for consistency

* Sync Forge/Fabric log4j versions, de-dup

* Downgrade both log4j. This will work

* Update some plugins as well

* Drop the fabric force stuff

* Use duplicate strategy to directly merge jar

COMPILING.md

@@ -1,9 +1,8 @@
 Compiling
 =========
 
-You can compile FastAsyncWorldEdit as long as you have the [Java Development Kit (JDK)](http://www.oracle.com/technetwork/java/javase/downloads/index-jsp-138363.html) for Java 8.
-Newer versions of the JDK may not compile. 
-You only need one version of the JDK installed.
+You can compile FastAsyncWorldEdit as long as you have some version of Java greater than or equal to 8 installed. Gradle will download JDK 8 specifically if needed,
+but it needs some version of Java to bootstrap from.
 
 The build process uses Gradle, which you do *not* need to download. FastAsyncWorldEdit is a multi-module project with two active modules:
 
@@ -29,7 +28,7 @@ You will find:
 * The core FastAsyncWorldEdit API in **worldedit-core/build/libs**
 * FastAsyncWorldEdit for Bukkit in **worldedit-bukkit/build/libs***
 
-If you want to use FastAsyncWorldEdit, use the `FastAsyncWorldEdit-1.15-#` version.
+If you want to use FastAsyncWorldEdit, use the `FastAsyncWorldEdit-1.16-#` version.
 
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