The test plan doesn't cover all add/existing code as requested in the task. For example (but there could be more scenarios), these cases aren't covered:

No words "mysqldump", "Warning" in the resulting files.

I've updated test plan (up to date SSL certificate & different SSL test domains).

Last line from test result is: "Test 5 (correct custom cert failure): Failed"
Not match with defined in test plan "Test 5 (correct custom cert failure): Passed"

In D467#9487, @erik wrote:

All right in general, but

2.6 confirm, that the design of the login page was changed - changed, but only after memcache reset
5.4 - incomplete or excessive line in test plan
5.5 confirm, that an alt attribute of the invisible link in the top left corner (on red background) has one"two three value - there is such title attribute, no alt attribute

all right, test times:

Indicate PHP_CodeSniffer & PHP_MessDetector versions, that support caching.

Removed debug code.

Bugfix: the PHP_MessDetector was building it's cache with absolute paths instead of a relative ones.

All right in general, but

Time reports for all 8 tests

Removed debug code.

All works right, only test plan must be corrected.

Removed unrelated change to the System column in the database schema.

Can't test with correct MySQL version, but visually code looks good and works good with current MySQL version.

Handle an SQL error during the Clean Install.

In the chrome browser, after reload frame. window is not scrolled. In the firefox browser this auto-scrolling works good.