2019 Plasma release schedule

[Jonathan Riddell]

I've made the Plasma release schedule for 2019

https://community.kde.org/Schedules/Plasma_5

Plasma 5.15 (using Frameworks 5.54) beta is Jan 17th and final Feb 12th.
Plasma 5.16.0 June 11
Plasma 5.17.0 Oct 15

It's in Phabricator
https://phabricator.kde.org/calendar/query/month/2018/11/

and my Google calendar
https://calendar.google.com/calendar/embed?src=031gkgqg1hjf8lcmj0em1d2sj8%40group.calendar.google.com&ctz=Europe%2FLondon

Let me know of any issues

Jonathan