Updated Upstream (Bukkit/CraftBukkit/Spigot)

Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
79f6ba25 Skip tests on default builds
b85cc32f Further discourage World.regenerateChunk

CraftBukkit Changes:
7560d3b5 Skip tests on default builds
d0a9130d SPIGOT-4563: Fix regenerating chunks saved to disk already

Spigot Changes:
8173d06f Remove need for redundant second clone of repositories
8ede0393 Rebuild patches

Spigot-Server-Patches/Use-TerminalConsoleAppender-for-console-improvements.patch

@@ -19,7 +19,7 @@ Other changes:
     configuration
 
 diff --git a/pom.xml b/pom.xml
-index 713034015..b1d860a75 100644
+index d1913a434..1512ff969 100644
 --- a/pom.xml
 +++ b/pom.xml
 @@ -0,0 +0,0 @@
@@ -243,7 +243,7 @@ index f2c172ff1..3b918da4d 100644
  
      public KeyPair E() {
 diff --git a/src/main/java/net/minecraft/server/PlayerList.java b/src/main/java/net/minecraft/server/PlayerList.java
-index fe2f13aef..07e25ce1d 100644
+index 9d44dcb3b..8bb3fef21 100644
 --- a/src/main/java/net/minecraft/server/PlayerList.java
 +++ b/src/main/java/net/minecraft/server/PlayerList.java
 @@ -0,0 +0,0 @@ public abstract class PlayerList {