translation update
Merge pull request #824 from dokuwiki-translate/lang_update_119

Translation update (de)
translation update
Merge pull request #825 from dokuwiki-translate/lang_update_123

Translation update (zh-tw)
updated dates in info.txt of various plugins and template
set canonical URL to root when on start page
Merge pull request #827 from splitbrain/canonical-root

Set canonical URL to root when on start page
translation update
translation update
Merge pull request #832 from dokuwiki-translate/lang_update_128

Translation update (ru)
Merge pull request #831 from dokuwiki-translate/lang_update_127

Translation update (ru)
translation update
Merge pull request #834 from dokuwiki-translate/lang_update_132

Translation update (it)
sanity check update message

This should avoid problems when a WiFi login redirect intercepts the
update check.
See https://forum.dokuwiki.org/post/45076
translation update
Merge pull request #837 from dokuwiki-translate/lang_update_140

Translation update (fa)
translation update
Merge pull request #843 from dokuwiki-translate/lang_update_153

Translation update (pt-br)
translation update
Merge pull request #844 from dokuwiki-translate/lang_update_155

Translation update (es)