/collection/{slug}/estimation: admin should have access to everyone's estimation page

[0pdd]

The puzzle 884-61920ac4 from #884 has to be resolved:

mystamps/src/main/java/ru/mystamps/web/support/spring/security/SecurityConfig.java

Line 92 in 9287473

// @todo #884 /collection/{slug}/estimation: only owner should have access to estimation page

The puzzle was created by Slava Semushin on 20-Jun-18.

[php-coder]

At this moment the task is already solved: "only owner should have access to estimation page" statement is true because in #891 we restricted the access to the service method by only collection's owner. Even if the access on the page-level aren't so strict, the page can't be opened anyway because the service method has a stricter protection. See spring-projects/spring-security#6948 for details.

But the access still needs to be altered to allow admin access to everyone's page. This should simplify debug when it will be required. So, I've edited the issue's title to reflect that.