This makes typos such as missing commas between two assertions
(e.g. ?assert(true) ?assert(true)) syntax errors instead of silently
compiling and failing with a badfun error at runtime.

This won't break any existing code as parenthesed expressions and blocks
have the same precedence and none of these macros can be used as patterns.

  New macros assertNotMatch(Guard, Expr), assertNotEqual(Unexpected, Expr),
  and assertNotException(Class, Term, Expr).

  The debugMsg macro now also prints the pid of the current process.

  When testing all modules in a directory, tests in <Module>_tests.erl are
  no longer executed twice.

  The use of 'regexp' internally has been replaced with 're'.