Fix unit tests

PHPUnit 4.3.1 by Sebastian Bergmann.

Configuration read from /home/fox/src/php/ezsystems/zetacomponents/MvcTools/phpunit.xml.dist

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Time: 5.78 seconds, Memory: 11.75Mb

OK (168 tests, 352 assertions)

PHP's default charset is UTF-8, but, if we don't set that we should. ZetaComponents was designed to do UTF-8 only.