Fixes

Fixes unlink failing if a parameter is provided
Fix plot unlinking not resetting the road biome
Fixes #888

Sponge/build.gradle

@@ -46,14 +46,14 @@ processResources {
                 'mcVersion': project.minecraft.version
     }
 }
-
+// We only want the shadow jar produced
+jar.enabled = false
 shadowJar {
     dependencies {
         include(dependency(':Core'))
     }
     archiveName = "${parent.name}-${project.name}-${parent.version}.jar"
 }
-
 shadowJar.doLast {
     task ->
         ant.checksum file: task.archivePath