Port to D7

Hello!
I am refactoring the module I maintain (BOTCHA, spam protection without CAPTCHA) and this module helped me a lot to abstract some functionality I need for the development. My use case is to implement some kind of an aspect to log any method calling with all parameters passed. I need it because I've started to develop Selenium tests for BOTCHA's JavaScript - and the problem is that they are launched via command-line interface, so usual methods of debugging (such as XDebug) don't work.
A patch, containing port of this module to D7, is attached.
The issue has critical status because a new version of BOTCHA (7.x-3.x) depends on this module - so it is show-stopper.