Dont use gravatars for user select if gravatar is disabled

Fixes #836

User pages are public

ssh keys publically available for sysadmins via http, the github way

... if the user is authorized to at least one public project.

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

Merge branch 'retrieve_ssh_keys_by_ssh' of github.com:devaroop/gitlabhq into retrieve_ssh_keys_by_ssh

Update upgrade guide if you have more than one backup .tar file

fix: link_to_merge_request_diff_line_note

Fix 500 error in Ruby 1.9.

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

Conflicts:
	doc/update/upgrader.md

We Hate Options

Fix numbering in 6.3-to-6.4.md

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

Feature: show last commit for Blob#show

Fixes #970

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

Update changelog for #6267

Fix wrong issues appears at Dashboard#issues page

Fixes #1028

Ace Editor as gem

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

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

Fixes #6073, Update grammer in MR accept form

Fixes #6187, Update dead links

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

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

Sockets Are Standard

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>

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

Minor README fix