attempted fixes for spatialIO, security and ShaderTech compat

gradle.properties

@@ -4,7 +4,7 @@ aebuild=7
 aegroup=appeng
 aebasename=appliedenergistics2
 extended=extended_life
-extendedversion=v0.54.19
+extendedversion=v0.54.20
 #########################################################
 # Versions                                              #
 #########################################################

src/main/java/appeng/core/api/imc/IMCSpatial.java

@@ -28,6 +28,7 @@ package appeng.core.api.imc;
 import appeng.api.AEApi;
 import appeng.core.AELog;
 import appeng.core.api.IIMCProcessor;
+import net.minecraft.launchwrapper.Launch;
 import net.minecraftforge.fml.common.event.FMLInterModComms.IMCMessage;
 
 
@@ -37,7 +38,7 @@ public class IMCSpatial implements IIMCProcessor {
     public void process(final IMCMessage m) {
 
         try {
-            final Class classInstance = Class.forName(m.getStringValue());
+            final Class classInstance = Class.forName(m.getStringValue(), false, Launch.classLoader);
             AEApi.instance().registries().movable().whiteListTileEntity(classInstance);
         } catch (final ClassNotFoundException e) {
             AELog.info("Bad Class Registered: " + m.getStringValue() + " by " + m.getSender());

src/main/java/appeng/me/cache/SecurityCache.java

@@ -138,16 +138,14 @@ public class SecurityCache implements ISecurityGrid {
 
     @Override
     public boolean hasPermission(final int playerID, final SecurityPermissions perm) {
+        if (playerID == -1) {
+            return true;
+        }
         if (this.isAvailable()) {
             final EnumSet<SecurityPermissions> perms = this.playerPerms.get(playerID);
 
             if (perms == null) {
-                if (playerID == -1) // no default?
+                return this.hasPermission(-1, perm);
-                {
-                    return false;
-                } else {
-                    return this.hasPermission(-1, perm);
-                }
             }
 
             return perms.contains(perm);

src/main/resources/assets/appliedenergistics2/models/part/p2p/p2p_tunnel_redstone.json

@@ -1,6 +1,6 @@
 {
     "parent": "appliedenergistics2:part/p2p/p2p_tunnel_base",
     "textures": {
-        "type": "blocks/redstone_block"
+        "type": "appliedenergistics2:blocks/redstone_p2p"
     }
 }