Add new built-in function type() that returns the name of the type of

the given value as a string. Includes test case.

src/main/java/lua/value/LString.java

@@ -5,6 +5,8 @@ import lua.StackState;
 
 public class LString extends LValue {
 
+	public static final LString TYPE_NAME = new LString("string");
+	
 	final String m_string;
 	final int m_hash;
 	
@@ -53,4 +55,8 @@ public class LString extends LValue {
 		return new LInteger( m_string.length() );
 	}
 
+	public LString luaGetType() {
+		return TYPE_NAME;
+	}
+
 }