Updated all the flag watchers to 1.9 values

Added some new flag watchers
Added some new API methods to flag watchers
Fixed some more disguises
Added new options to some disguises
Certain packets have been fixed
Still not ready for use, but most mob disguises work

WARNING, the plugin is still heavily in ALPHA
- Currently not working:
Player disguises
Misc. disguises
Joining a server while someone is disguised
Sounds
Names above heads
Other packet related things

src/main/java/me/libraryaddict/disguise/LibsDisguises.java

@@ -22,6 +22,7 @@ import me.libraryaddict.disguise.disguisetypes.watchers.GuardianWatcher;
 import me.libraryaddict.disguise.disguisetypes.watchers.HorseWatcher;
 import me.libraryaddict.disguise.disguisetypes.watchers.LivingWatcher;
 import me.libraryaddict.disguise.disguisetypes.watchers.MinecartWatcher;
+import me.libraryaddict.disguise.disguisetypes.watchers.SkeletonWatcher;
 import me.libraryaddict.disguise.disguisetypes.watchers.SlimeWatcher;
 import me.libraryaddict.disguise.disguisetypes.watchers.TameableWatcher;
 import me.libraryaddict.disguise.disguisetypes.watchers.ZombieWatcher;
@@ -130,6 +131,9 @@ public class LibsDisguises extends JavaPlugin {
                     case ENDERMITE:
                         watcherClass = LivingWatcher.class;
                         break;
+                    case WITHER_SKELETON:
+                        watcherClass = SkeletonWatcher.class;
+                        break;
                     default:
                         watcherClass = Class.forName("me.libraryaddict.disguise.disguisetypes.watchers."
                                 + toReadable(disguiseType.name()) + "Watcher");