Branches with no parent cannot be merged

Solves `undefined method 'reduce' for false:FalseClass`

Fixes #1415

See merge request !967

Remove thread-unsafe Dir.chdir from Satellite#lock

See merge request !968

per request project rules caching

Enforce md style.

This is made possible by changes in gitlab-grit 2.6.10.

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

A Developer cannot manage milestones

Improve login page

* use max-width for brand logo to prevent stretch of small images
* improve default brand logo to be centred on any kind of screen
* hide logo for small screens
* hide text for xs screens
* reduce amount of text on sign-in page

Fixes #1423

See merge request !966

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

Redirect on signin

Fixes #1346

See merge request !965

This reverts commit 5aaa3565, reversing
changes made to 5b8c1767.

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>

EE login layout

Port login layout from EE

See merge request !964

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>

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>

Update architecture diagram

Update the diagram and make clear that rails accesses the repo's via shell.

When done submit to partner.

See merge request !962

Escape before autolink

Because auto_link set description to html_safe but dont escape html!!! :(

See merge request !963

Add html_escape to project description. auto_link set description to html_safe but! dont escape html :(.
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Upgrade devise from 3.0.4 to 3.2.4

See merge request !960