Fix 404 on project page for unauthenticated user

Eliminate a 404 error when user is not logged in and attempts to visit
a project page.

The 404 page will still show up when user is logged in and the project
doesn’t exist or the user doesn’t have access.
Tiny typo
Merge pull request #5761 from gravis/patch-2

Tiny typo
Updated README.md - Added RAILS_ENV

Added RAILS_ENV to gitlab:test command, so the dev database wont be wiped.

fixes https://github.com/gitlabhq/gitlabhq/issues/5756#issuecomment-29876630
Merge pull request #5762 from jvanbaarsen/patch-2

Updated README.md - Added RAILS_ENV
Improve avatar block UI on profile page

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Fix comment form UI

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Merge pull request #5752 from jhollingsworth/fix/no-404-for-project

Fix 404 on project page for unauthenticated user