Fix creation script

[Graeme-Miller]

An issue was created by #812.

That PR removed the password needed to create the user brooklyn'@'localhost

[Graeme-Miller]

I have tested this on a MySQLNode and it works

[drigodwin]

This looks fine to me, thankyou @Graeme-Miller!

[ahgittin]

@Graeme-Miller @drigodwin odd - local seemed to work for me but sometimes mysql is weird which NIC/socket it uses for localhost, and different versions are different. good fix.

two things--

• is the same update made to brooklyn-library ?

• is there a reason we're not consistent what perms we give to the two users? (this PR gives usage to the users @ % but all to @ localhost -- previously was all on visitors and usage elsewhere, to both users) ... in other words should the file read

grant usage on *.* to 'brooklyn'@'%' identified by '${config["creation.script.password"]!"br00k11n"}';
grant all privileges on visitors.* to 'brooklyn'@'%';
# useful if sockets work also
grant all privileges on *.* to 'brooklyn'@'localhost' identified by '${config["creation.script.password"]!"br00k11n"}';
grant all privileges on visitors.* to 'brooklyn'@'localhost';