Merge branch 'stable-3.1' into 'stable-3.1'

change password-defaults to pass https://mariadb.com/kb/en/mariadb/simple_password_check/



See merge request !581

Author: Till Brehm

install/tpl/system.ini.master

@@ -63,5 +63,5 @@ customer_no_start=1
 customer_no_counter=0
 session_timeout=0
 session_allow_endless=0
-min_password_length=5
-min_password_strength=0
+min_password_length=8
+min_password_strength=3