D7271: optionally show a history of notifications

[Julian Wolff]

progwolff marked 2 inline comments as done.

REPOSITORY
  R120 Plasma Workspace

REVISION DETAIL
  https://phabricator.kde.org/D7271

To: progwolff, #plasma
Cc: davidedmundson, plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, 
jensreuterberg, abetts, sebas, apol, mart, lukas