ComputerCraft 1.79 initial upload

Added the complete source code to ComputerCraft 1.79 for Minecraft
1.8.9, plus newly written README and LICENSE files for the open source
release.

src/main/java/dan200/computercraft/shared/util/CreativeTabTreasure.java

@@ -0,0 +1,31 @@
+/**
+ * This file is part of ComputerCraft - http://www.computercraft.info
+ * Copyright Daniel Ratcliffe, 2011-2016. Do not distribute without permission.
+ * Send enquiries to dratcliffe@gmail.com
+ */
+
+package dan200.computercraft.shared.util;
+
+import dan200.computercraft.ComputerCraft;
+import net.minecraft.creativetab.CreativeTabs;
+import net.minecraft.item.Item;
+
+public class CreativeTabTreasure extends CreativeTabs
+{
+    public CreativeTabTreasure( int i )
+    {
+        super( i, "Treasure Disks" );
+    }
+    
+    @Override
+    public Item getTabIconItem()
+    {
+        return ComputerCraft.Items.treasureDisk;
+    }
+    
+    @Override
+    public String getTranslatedTabLabel()
+    {
+    	return getTabLabel();
+    }
+}