getting user keys publically through http without any authentication, the github way. E.g: http://github.com/devaroop.keys
getting user keys publically through http without any authentication, the github way. E.g: http://github.com/devaroop.keys

changelog updated to include ssh key retrieval feature update
add rake gitlab:import: all_users_to_all_groups and user_to_groups

I opted for admins to be added as "owners" instead of "masters" because project masters can managers members, but only group owners can manage members.
Fix numbering in 6.3-to-6.4.md
Unify markdown syntax for Bash commands
use the iid to generate the link_to_merge_request_diff_line_note instead of id
Reword upgrade -y comment, improve layout and allow just y.
In the case when a user can and has authenticated with ldap, however
ldap is disabled in the gitlab config, this fixes the API still calling
the ldap backend.
Fix 500 error in Ruby 1.9.
adding tests for the ssh keys feature
merge with upstream master
sync with upstream for ease to merge
Update Gemfile
Update Gemfile.lock
update manual error in changelog while merging
Add emoji images to asset load path.
Update upgrade guide if you have more than one backup .tar file
Update changelog for #6267
Fix wrong issues appears at Dashboard#issues page

Filtering service used klass instead of passed items.
Because of this you see list of all issues intead of authorized ones.
This commit fixes it so people see only issues they are authorized to
see.

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Add more tests for FilteringService

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