Adapter should be an argument of parent constructor.
It's now possible to define assertion handler directly in the test class.

Before this commit, to define or override an assertion handler, you
should do something like this:

<?php
…
class foo extends atoum
{
   …
   $test = $this;

   $this->getAssertionManager()->setHandler('then', function() use ($test) { $test->getTestAdapterStorage()->resetCalls(); return $test; });
   …
}
?>

Now, you can do:

<?php
…
class foo extends atoum
{
   …
   $test = $this;

   $this->then = function() use ($test) { $test->getTestAdapterStorage()->resetCalls(); return $test; };
   …
}
?>