It turns out that the native library cannot be renamed after creation.
The right name must be used from the beginning, otherwise
publishing is failing with the follow error (gacutil -i):

"Failure adding assembly to the cache: Invalid file or assembly name.
The name of the file must be the name of the assembly plus .dll or .exe."

To rectify that create the native lib as cli_cppuhelper.dll,
rename the signed assembly to assembly/cli_cppuhelper.dll and
teach scp2 to pick up the right one: assembly/cli_cppuhelper.dll
(and not cli_cppuhelper.dll).

Change-Id: I2073b617cd440865ae4ab838bb801329f2b07194