v3.8.0

CompatHelper v3.8.0

Diff since v3.7.0

Merged pull requests:

• Only clone once, not once per subdir (#443) (@ericphanson)
• Fix Documenter to 0.27 (#453) (@lgoettgens)
• Stop ignoring stdlibs (#457) (@DilumAluthge)
• Update some tests (#459) (@DilumAluthge)
• Bump the version number from 3.7.0 to 3.8.0 (#460) (@DilumAluthge)

Closed issues:

• CompatHelper stopped working on Bokeh.jl (#428)
• Why clone once per subdir? (#442)
• CompatHelper keeps creating new branches for the same change (#451)
• We need to start opening PRs to add/update compat entries for stdlibs (#456)