Layers and IC2 Tunnel (#2565)

* Re-Activated the IC2 layers to implement an IC2 P2P tunnel.

gradle/scripts/integration.gradle

@@ -1,29 +0,0 @@
-/*
- * This file is part of Applied Energistics 2.
- * Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved.
- *
- * Applied Energistics 2 is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Applied Energistics 2 is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with Applied Energistics 2.  If not, see <http://www.gnu.org/licenses/lgpl>.
- */
-
-// Should be provided by ForgeGradle, some idea user should confirm it.
-apply plugin: 'idea'
-
-idea {
-    module {
-        inheritOutputDirs = true
-
-        // excludes integration due to not being available upon port
-        excludeDirs += file('src/main/java/appeng/parts/layers/')
-    }
-}