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/api/lua/LuaException.java

@@ -0,0 +1,36 @@
+/**
+ * This file is part of the public ComputerCraft API - http://www.computercraft.info
+ * Copyright Daniel Ratcliffe, 2011-2016. This API may be redistributed unmodified and in full only.
+ * For help using the API, and posting your mods, visit the forums at computercraft.info.
+ */
+
+package dan200.computercraft.api.lua;
+
+/**
+ * An exception representing an error in Lua, like that raised by the error() function
+ */
+public class LuaException extends Exception
+{
+    private final int m_level;
+
+    public LuaException()
+    {
+        this( "error", 1 );
+    }
+
+    public LuaException( String message )
+    {
+        this( message, 1 );
+    }
+
+    public LuaException( String message, int level )
+    {
+        super( message );
+        m_level = level;
+    }
+
+    public int getLevel()
+    {
+        return m_level;
+    }
+}