Update to 5.8

• Enable the ctrl-enter keys to submit forms on tickets and PRs
• Fix spelling errors on documentation
• Fix renewing url on invalid token error message
• Various fixes to the srcfpo theme
• disable smooth scrolling on initial highlight & scroll process
• Accept a with_commits parameter on the branches api to resolve the HEAD commits
• Various fixes to the PR view
• Add support for arrow >= 0.15
• Select full text on git|ssh url input boxes when they get focus
• Send notification when a branch is created
• Add revision along with tag/branch creation/deletion
• Add asciidoc syntax override
• Fix git blame on unborn HEAD or non-master default branch repos
• Fix the logic to rebase PRs
• Fix setting one's default email address
• Send oldrev as old_commit for git.receive event
• Add a set-default-branch action to pagure-admin
• Fix rendering badges on the PR list page
• Tweak when we show the merge and the rebase buttons
• Fix the logic around interacting with read-only databases in hooks
• Fix .diff and .patch generation for empty commits
• Fix url on the invalid token error message
• Fix typo on the pull request merge error message
• Allow cross-project API token to open pull-request
• Allow updating PRs via the API using cross-project tokens
• Fix the logic to make the merge button appear on pull-request