all tests are in a test suite now, have groups and tiny bit of more documentation

the new documentation is mainly for IDEs to be able to resolve types of variables correctly

Signed-off-by: tobias.wiesenthal <tobias.wiesenthal@cisha.de>
changed default phpunit config file

Signed-off-by: tobias.wiesenthal <tobias.wiesenthal@cisha.de>
almost finished couchClientAdminTest

Signed-off-by: tobias.wiesenthal <tobias.wiesenthal@cisha.de>