added method PMA_getUrlParameters
can be done only once
updated the comment.
phpcs errors corrected
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Merge remote-tracking branch 'weblate/master'

Conflicts:
	po/fi.po
Tests for libraries/plugins/export*
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Remove assertion of configurable properties
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"Edit user group" link should not be presented when no user group is defined
Ask for confirmation before deleting a user group
Do not show table header it there were no user groups
added back mistakenly removed require_once statement.
Delete related user group assignments when deleting a user group
Order user groups in ascending order
Merge branch 'master' into configurableMenus

Conflicts:
	libraries/server_privileges.lib.php
Escape html