More improvements to activation range, improve turtles

improved the water code so that immunity wont trigger if the entity
has the water pathfinder system active, so this improves support
for all entities that know how to behave in water.

Merged 2 EAR patches together, and removed an MCUtil method that
doesnt have a purpose anymore

Spigot-Server-Patches/Delay-Chunk-Unloads-based-on-Player-Movement.patch

@@ -43,7 +43,7 @@ index ff1a2046f6..0cd15c17e8 100644
 +    }
  }
 diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
-index 41d3aaa80b..824727ec66 100644
+index e1c3e19029..bc4d6f127d 100644
 --- a/src/main/java/net/minecraft/server/Chunk.java
 +++ b/src/main/java/net/minecraft/server/Chunk.java
 @@ -0,0 +0,0 @@ public class Chunk implements IChunkAccess {
@@ -211,7 +211,7 @@ index 72d1a0f51d..3536433d14 100644
              }
  
 diff --git a/src/main/java/org/spigotmc/ActivationRange.java b/src/main/java/org/spigotmc/ActivationRange.java
-index 12040596df..f9bb19fed6 100644
+index 05e10fb366..d47a77fdee 100644
 --- a/src/main/java/org/spigotmc/ActivationRange.java
 +++ b/src/main/java/org/spigotmc/ActivationRange.java
 @@ -0,0 +0,0 @@ public class ActivationRange