unified unit and integration tests

_testing/README

_testing/bootstrap.php

_testing/conf/acl.auth.php.dist

_testing/conf/acronyms.conf

_testing/conf/dokuwiki.php

_testing/conf/entities.conf

_testing/conf/interwiki.conf

_testing/conf/license.php

_testing/conf/local.php

_testing/conf/local.php.dist

_testing/conf/mediameta.php

_testing/conf/mime.conf

_testing/conf/mysql.conf.php.example

_testing/conf/plugins.local.php

_testing/conf/plugins.required.php

_testing/conf/scheme.conf

_testing/conf/smileys.conf

_testing/conf/users.auth.php.dist

_testing/conf/wordblock.conf

_testing/data/_dummy