Prevent rasterization artifacts in the logo, and simplify markup.
- Remove sketch-namespaced attributes.
- Remove unused groups, and cancel out unnecessary transforms.
- Use overlap to avoid rasterization artifacts in the logo.
- Remove viewBox parameter and define paths in their final form.
See merge request !2741
- Remove sketch-namespaced attributes.
- Remove unused groups, and cancel out unnecessary transforms.
- Use overlap to avoid rasterization artefacts in the logo.
- Extend comment for `#logo` click event handler, as it's a non-obvious hack for Safari.
- Remove viewBox parameter and define paths in their final form.
Feature/jschatz1/sidebar features
* Changes sidebar width (290px).
* Makes shortcuts for <kbd>j</kbd> and <kbd>k</kbd> keys for next and previous issues.

cc/ @dzaporozhets
See merge request !2734
updates after code review: moved coffee code to appropriate file, updated css to not use js-prefixed selectors
Updated comments and Changelog
Removed duplicate line in changelog
Adds the markdown link at the cursor poisition
When writing a comment and then dropping an image it will correctly add the image markdown link at the cursor position

Tested in Chrome & Firefox and both working fine 👍Fixes#12822
cc. @jschatz1
See merge request !2648
Added dropdown to list all projects on project header
Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/4212
When clicking the current project name, it shows a dropdown menu with a list of all projects for that group or user.
When closed:

When open:

cc. @jschatz1
See merge request !2438
First, the autosize library was being too controlling and removed the
`resize` property from any elements to which it was attached, removing
the drag handle.
Second, we detect when the user manually resizes an autosize textarea,
and then remove the autosize behavior from it and increase its
max-height.
This should allow for the best of both worlds.
Closes#12832
Highlight note code and edit preview
More highlighting fixes! Highlighting wasn't applied all the way for
code in notes, diff notes diffs and diff preview (on the file edit page).
The CSS changes further unify the styling for file-content highlighting,
diff highlighting and note code highlighting.
See merge request !2594