Fix reloading of configuration and meta-data changes

Id5819facb591d548df9febf288e38065949128ec made a lot of classes
singleton and as result the configuration and the meta-data storage
was never updated at runtime.

I3f2797983ee5ab690b9806f9b8f4744259598810 fixed one occurrence of this
problem but missed to do the same fix in all affected places.

Change-Id: I210f6a4c1c3d2156c99e991c72022709a237e7ae
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>
(cherry picked from commit 838472ff6fdaf9711c9dbed5569000af731a86d2)