Set fake rpc implementation in metaplugin test configuration.

fixes bug 1112051

Change-Id: Ie38c930429bc328512a629c61e4e06480549e630
Imported Translations from Transifex

Change-Id: Ied72f9530ceb7d5d45228b864466845963b2fd36
Merge "Set fake rpc implementation in metaplugin test configuration."