moving files
moved JArchiveTestCase.php to the right place
remover database tests under suites/database and added composer self update
deleted old test
undo changes (doesn't makes any difference, I know)
Merge pull request #1667 from rdeutz/unit-tests

moving Unit-Test files and changed travis-ci conf
Restore database tests
 + [#31436] *Create a update button to list new Help servers. Thanks
Julien Vonthron
(Fix #1717)(Fix #1523)