* master: (623 commits)
  Fix issues with pdf-js dependencies
  fix missing changelog entries for security release on 2017-01-23
  Update top bar issues icon
  Fix pipeline icon in contextual nav for projects
  Since mysql is not a priority anymore, test it less
  Fix order of CI lint ace editor loading
  Add container registry and spam logs icons
  Fix different Markdown styles
  Backport to CE for:
  Make new dropdown dividers full width
  Fix spec
  Fix spec
  Fix spec
  Bump GITLAB_SHELL_VERSION and GITALY_VERSION to support unhiding refs
  Add changelog
  Install yarn via apt in update guides
  Use long curl options
  fix
  Add a spec for concurrent process
  Remove monkey-patched Array.prototype.first() and last() methods
  ...

First round of review, main changes:
- templates.title is human readable, #name will be passed around
- GitLabProjectImporterService has been renamed

Started implementation for the first iteration of
gitlab-org/gitlab-ce#32420. This will allow users to select a template
to start with, instead of an empty repository in the project just
created.

Internally this is basically a small extension of the ImportExport
GitLab projects we already support. We just import a certain import
tar archive. This commits includes the first one: Ruby on Rails. In the
future more will be added.

Signed-off-by: Rémy Coutable <remy@rymai.me>