Change System.out.print to Spring Logging

[AxelCB]

Line 22 of PasswordUtils.java:
System.out.println(hashedPassword);

Should be modified to print the hashed password using spring logging, though should be removed for a production real environment. This is just to get the hashed password to save in the database.

Also, we may consider creating a default admin - user in the SQL script for Demo purposes only.