June 7, 2005, by Qiang Xue (qiang.xue@gmail.com)
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- changed all class memeber declarations from 'var $varname' to 'private $varname'.
- removed all reference usages, including creating new objects, returning and passing objects.
- modified expectation.php line 106 from  'function test($compare, $nasty=false) {' to 'function test($compare) {'.
- added HtmlReporterWithCoverage.php