EE: Enable JUnit results for rspec

See merge request gitlab-org/gitlab-ee!7207

Handle fixed dates seperately from selected dates in Epics

Closes #7437

See merge request gitlab-org/gitlab-ee!7227

New Crowdin translations

See merge request gitlab-org/gitlab-ee!7223

Fix release version on doc for epic date sourcing / new epic notification

Closes #7436

See merge request gitlab-org/gitlab-ee!7220

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Resolve "Weight Feature in Community Edition buggy in board view"

Closes #7180

See merge request gitlab-org/gitlab-ee!6864

CE upstream - 2018-09-04 06:21 UTC

See merge request gitlab-org/gitlab-ee!7221

Make cache vs artifacts section more visible, and minor enhancements to text.

See merge request gitlab-org/gitlab-ce!21491

Resolve "Should we still use Flay?"

Closes #44750

See merge request gitlab-org/gitlab-ce!21476