

v0.2.0
-------------------------------------------
* added debug info logging
* added -e and -w option for exception and warning
* add a mechanism for new option insertion
* enhanced the ok function


v0.1
-------------------------------------------

This is a fairly complete list of v0.1, which can
serve as a reference for test engineers.

* automatically log test cases and steps
* implemented general operators and corresponding functions, including::
    eq, ne, gt, lt, ge, le, match, unmatch
* implemented the framework for adding new operators and functions
* implemented step/steps/s functions, which can be used in some test frameworks
