Add files to path blacklist.
Remove empty ErrorsController
Fix broken test in spec/models/project_spec.rb

A test was broken if running on a non-standard port.
Made checking for (non-)standard port more robust.
Changed gitlab_on_non_standard_port to gitlab_on_standard_port (less negative).
Merge branch 'fix/test' of /mnt/ebs/repositories/jhworth.developer/gitlab-ce
Merge branch 'fix/routing' of /mnt/ebs/repositories/jhworth.developer/gitlab-ce