fix autoloading in LPAP integration tests, resolves #544

apps/user_ldap/tests/Integration/Bootstrap.php

...ntegration/Lib/IntegrationTestAccessGroupsMatchFilter.php

...dap/tests/Integration/Lib/IntegrationTestBackupServer.php

...tegration/Lib/IntegrationTestBatchApplyUserAttributes.php

...ser_ldap/tests/Integration/Lib/IntegrationTestConnect.php

.../Integration/Lib/IntegrationTestCountUsersByLoginName.php

.../Integration/Lib/IntegrationTestFetchUsersByLoginName.php

...user_ldap/tests/Integration/Lib/IntegrationTestPaging.php

...er_ldap/tests/Integration/Lib/IntegrationTestUserHome.php

.../tests/Integration/Lib/User/IntegrationTestUserAvatar.php

...s/Integration/Lib/User/IntegrationTestUserDisplayName.php

lib/private/legacy/app.php