* master: (158 commits)
Improve output for extra queries in specs
Fixed new group milestone breadcrumb
Try to find the merge-base against the canonical master
Add FetchSourceBranch Gitaly call
Backport QA code that belongs to CE from EE Geo
Add QUERY_RECORDER_DEBUG environment variable to improve performance debugging
Add support of Mermaid
Update VERSION to 10.3.0-pre
Update CHANGELOG.md for 10.2.0
default fill color for SVGs
Fix reply quote keyboard shortcut on MRs
ignore hashed repos (for now) when using `rake gitlab:cleanup:repos`
Use Redis cache for branch existence checks
Update CONTRIBUTING.md: Link definition of done to criteria
Use `make install` for Gitaly setups in non-test environments
FileUploader should check for hashed_storage?(:attachments) to use disk_path
Set the default gitlab-shell timeout to 3 hours
Update composite pipelines index to include "id"
Use arrays in Pipeline#latest_builds_with_artifacts
Fix blank states using old css
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