feature #10429 Add admin user avatar placeholder (kulczy)
feature #10429 Add admin user avatar placeholder (kulczy)

This PR was merged into the 1.6-dev branch.

Discussion
----------

| Q               | A
| --------------- | -----
| Branch?         | master
| Bug fix?        | no
| New feature?    | yes
| BC breaks?      | no
| Deprecations?   | no
| Related tickets |
| License         | MIT

<img width="285" alt="Zrzut ekranu 2019-06-5 o 16 24 23" src="https://user-images.githubusercontent.com/15385420/58963988-6defc480-87ae-11e9-937c-bb39fae89772.png">


Commits
-------

e479fa3288cf95948ee14aa1f4a7e17266917e2e Add user avatar placeholder

Sylius/SyliusAdminBundle,Sylius/SyliusAdminBundle