do not advertise gravatar in profile if disabled

Document the basics of working with Groups

Fix the PullReview tool link

Small contributions no rebase

Based on https://github.com/gitlabhq/gitlabhq/pull/7067#issuecomment-45060241

/cc @dzaporozhets

Version file

Fixes #1345

Remove ruby update guide

#1371

Ruby update in guide

Fixes #1371

textual changes

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

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

Typo.

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

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

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

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

Improve discussions

Implement outdated discussion detection

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

* check for outdated discussions by comparing diff
* improve discussion UI
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

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

Oauth errors page

Fix namespace select

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/371

Improve merge request comments

Fixes #1338

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

Fix reply button

Don't show reply button if user is not signed in. Fixes #1360

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

If user does not own any group he does not see namespace selector when
visit new project page even if he has master membership in one of
groups. This commit fixes it.
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

When add diff note on 'Changes' page - and then go to 'Discussions' tab
you will not see this discussion unless you reload a page. This commit
fixes it by rendering discussion on 'Discussion' page as soon as you
submit comment on 'Changes' page
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

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