Add namespace for projects to docs.
Doesn't exist for user endpoint.
Use same avatar size for all event rows

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
 Merge branch 'namespace-api-doc' into 'master'

Namespace Api Doc
Merge branch 'master' of dev.gitlab.org:gitlab/gitlabhq