Project must have namespace for Project#find_with_namespace

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Change project lookup order for api

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Use batch_add_keys in `rake gitlab:shell:setup`
Batch key import requires gitlab-shell 1.8.5
 Merge branch 'improve-project-lookup' into 'master'

Improve Project Lookup

Fixes #1080
 Merge branch 'batch_key_import' into 'master'

Batch Key Import
Add comments fixtures for development

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>