relax SVN archive

Reverted the debugging code of r4330.

The command used was:
svn merge -r4330:4329 svn+ssh://bugman@.../svn/relax/1.3

Removed the RelaxTestRunner.run() method as it was doing nothing.

Completed the STDOUT capture and prepending by added an override for _TextTestResult.addError().

The normal startTest() code is now run as well.

Added a deliberate unit test failure for implementing the new RelaxTestRunner code.

Restored the run() method accidentally renamed to run2() in the last commit.

Shifted the STDOUT redirection into the startTest() and stopTest() methods.

These methods are overrides for those in TestResult and _TextTestResult.

Created the _RelaxTestResult class as a replacement for _TextTestResult.

This is where the capture of STDOUT should occur.

Shifted the IO redirection into the RelaxTestRunner.run() method.

This is a temporary change.

Created the framework for a new unittest runner to replace TextTestRunner.

The point it to capture STDOUT during each test and only print it in the reports for failures and
errors.