New autoload and math test cases. Currently autoload does not work because

the GETGLOBAL instruction does not handle the case where a metatable method
is invoked.

src/test/res/math.lua

@@ -0,0 +1,7 @@
+local mathClass = luajava.bindClass("java.lang.Math")
+
+local function sqrt(x)
+	return mathClass:sqrt(x)
+end
+
+return { sqrt = sqrt; pi = mathClass.PI }