Start implementing class TestCase
Use arbitrary output buffer in performTest
Add missing separator in test output
Fix \retval documentation for performTest()
Number test cases in the documentation
Fix: include the right power table specified by Q256
Simplify test case
Enable diagnostic printing to arbitrary ostream
TestCase: Make _repeat an instance-wide parameter.

Instead of being a parameter of TestCase::execute()
Skeleton for fq:: tests + test cases for fq::inv
Start implementing test cases