1.7.1dev: merge [17887] from 1.6-stable (fix for #13871)

1.6.1dev: follow-ups to [14702], restore allowing 0 to daysback fie…

1.7.1dev: merge [17883] from 1.6-stable (fix for #13867)

1.6.1dev: adapt to Subversion 1.14.5 which svn.fs.closest_copy retu…

1.7.1dev: merge [17881] from 1.6-stable (refs #13864)

1.6.1dev: follow-up to [17878], fix unable to save //not-configured//…

1.7.1dev: merge [17874-17875] from 1.6-stable (fix for query)

1.7.1dev: merge [17873,17876-17878] from 1.6-stable (fix for #13864,1…

1.6.1dev: use the inline style element in prefs/pygments panel in ord…

1.6.1dev: prevent uses of unnecessary lineno styles from Pygments 2.7…

1.6.1dev: pass a list of CSS selectors to `HtmlFormatter.get_style_de…

1.6.1dev: prevent background style on hover for group headers in quer…

1.6.1dev: fix empty <caption class="trac-group"> element from query…

1.6.1dev: fix 2 test failures with Pygments 2.19+ (closes #13865)

1.7.1dev: merge [17869] from 1.6-stable (l10n/ja)

1.6.1dev/l10n/ja: translations updated (100%)

1.7.1dev: merge [17867] from 1.6-stable (fix for #13784)

1.6.1dev: fix the auto-centering of wikiColumn function in `wiki.js…

1.7.1dev: merge [17864:17865] from 1.6-stable (fix for #13802)

1.6.1dev: fix // entry listed wrongly in the autocomplete menu in d…

1.6.1dev: set background color of focused item in the autocomplete me…

1.7.1dev: merge [17861:17862] from 1.6-stable (fix for #13803)

1.6.1dev: use psycopg2.extensions.libpq_version() to retrieve the c…

1.6.1dev: fix libpq version detection in postgres_backend.py (closes …

1.7.1dev: merge [17859] from 1.6-stable (fix for #13794)

1.6.1dev: fix diff view to send bytes instance and TypeError not …

1.7.1dev: merge [17857] from 1.6-stable (fix for #13790)

1.6.1dev: avoid unicode digits in domain part of email address in wik…

1.7.1dev: merge [17854] from 1.6-stable (fix for #13788)

1.7.1dev: merge [17851,17853] from 1.6-stable (fix for #13778)