Tier 3: Fix installation of several modules to /usr prefix
Tier 4: Fix installation of several modules to /usr prefix
kf5-filesystem: Remove now unnecessary mkdirs
kf5-umbrella: Disable debuginfo packages (there are no binary files)
Introduce kde5-filesystem

Since kf5-filesystem now points to /usr, we need another set of macros
to point to /opt/. Since frameworks are now in /usr, we call the folder
with KDE 5 /opt/kde5.
kde5-filesystem: Fix _kde5_plugindir destination
Upgrade KActivities-qt5 to KF5KActivities framework
Upgrade plasma-frameworks to Tier 3 Framework
dbusmenu-qt5: update to latest snapshot and install to /usr prefix
Update packages.list