replacing umlaute and fixing address in headers Haldeneggsteig -> Universitaetsstrasse

Signed-off-by: Reto Achermann <reto.achermann@inf.ethz.ch>

Extended RPC+cap test

Now uses multiple clients at the same time

Signed-off-by: Lukas Humbel <lukas.humbel@inf.ethz.ch>

Add tests for cap transfer

rpc_cap_local test cap transfer on same core, rpc_cap_cross
test cross core cap transfer.

Signed-off-by: Lukas Humbel <lukas.humbel@inf.ethz.ch>