TestCase: tested methods pattern is test[A-Z0-1_] [Closes #64]
TestCase: scream about non-public test methods [Closes #62]
Environment variable names as constants
TestHandler: list TestCase methods by running with TestCase::LIST_METHODS argument [Closes #61]
TestHandler: set register_argc_argv=On always for '@testCase' tests

To be sure that $_SERVER['argv'] exists. Option is usually disabled for CGI.
Merge pull request #70 from milo/testcase-methods

Testcase methods