Fixed bossbars disabling self, added support for modded custom entities, disguises now refer to themselves with the right disguise name when possible, cleaned up some code, fixed bossbar error when a server uses a bad bossbar name in their own system

src/test/java/me/libraryaddict/disguise/utilities/DisguiseUtilitiesTest.java

@@ -1,7 +1,5 @@
 package me.libraryaddict.disguise.utilities;
 
-import com.google.gson.Gson;
-import org.apache.commons.lang.StringUtils;
 import org.junit.Assert;
 import org.junit.Test;