Added current release schedule to techbase

[Mario Fux]

Morning

As I was asked recently why the release schedule of KDE Frameworks 5 is not 
(yet) on techbase.kde.org I took the liberty to change this:
http://techbase.kde.org/Schedules/Frameworks

It's link to the main page as well:
http://techbase.kde.org/Schedules

The content is taken from:
http://community.kde.org/Frameworks/Epics

I hope that's ok for your guys. If you tell me I'll remove it from the 
community.kde.org wiki and set a link.

And what about the future releases of KF5? Any decisions made? At least Plasma 
5 has a tentative schedule now: http://techbase.kde.org/Schedules/Plasma_5

Best regards
Mario