Demo server footer: Open Git links in new window
Translated using Weblate (Korean)

Currently translated at 72.8% (1899 of 2609)
Translated using Weblate (Russian)

Currently translated at 99.7% (2600 of 2609)
Merge remote-tracking branch 'origin/QA_4_0' into QA_4_0
Version-Parameter fixed

Single Tracking-Entries couldn't be deleted because of missing Version in the Delete-Link.
UTs for PMA_server_variables
split the long assertion which failed due to time hard code
fix the typo: varible ==> variable
using better variable name and comments
fix the wrong comment for the case: value is not a number
Translated using Weblate (Dutch)

Currently translated at 99.9% (2712 of 2714)
Translated using Weblate (Indonesian)

Currently translated at 76.8% (2084 of 2714)
Merge remote-tracking branch 'origin/master'
Fix typo
Merge pull request #563 from mynetx/demo-footer-repo-link-new-window

Demo server footer: Open Git links in new window
Merge pull request #566 from FliegenKLATSCH/patch-1

Version-Parameter fixed
Version-Parameter fixed

Single Tracking-Entries couldn't be deleted because of missing Version in the Delete-Link.
Use PMA_generate_common_url for URL parameters
Merge commit '55bf30f5a8d236dc13a5c4d7d5d9afe7de6cc311'
Merge remote-tracking branch 'origin/QA_4_0'

Conflicts:
	tbl_tracking.php