Add two new tests for the remsim-server, which simulate what happens
if a client or bankd with identical ID connects twice. We expect
the second connection to get rejected at RSPRO level, and to be closed.
Change-Id: I29023f6b5ba430338c77bf01508c81bd6d8c99fa
Ralated: OS#5527
Remove the paragraph about writing to the Free Software Foundation's
mailing address. The FSF has changed addresses in the past, and may do
so again. In 2021 this is not useful, let's rather have a bit less
boilerplate at the start of source files.
Change-Id: I8ab8f1e79fcc38d889cce4eac2e90cd4e5582b1b