tests: Documentation and minor bugs
test_suite: current state
test_suite: to calculate checksums take mars size of data device
test_suite: current state
test_suite: adjust path names
test_suite: to calculate checksums take mars size of data device
test_suite: continue test for marsadm --force primary
test_suite add new test case to cronjob
test_suite: more debug
test_suite: option --config_root_dir allows to source arbitrary parent .conf files
test_suite: correct documentation
test_suite: correct option --config_root_dir
test_suite: new test cases
test_suite: take verbose_script = 1 as default
test_suite: use --config_root_dir option of start_test.sh

Now we can start single test cases *and* specify explicitly which *.conf
files are to be incorporated.
test_suite: fix variable name
test_suite: remove superfluous variable
test_suite: syntax error
test_suite: replace associative array by "normal array" to specify order of test execution
test_suite: remove private ssh trash