tests FEATURE test_server_thread

Comprehensible thread-safety test of
server-side functions. It is meant
to be run with Helgrind manually
rather than just seeing that it
passed in the test overview.
Suppression file for false positives
included.
diff --git a/tests/data/key_dsa.pub b/tests/data/key_dsa.pub
new file mode 100644
index 0000000..13d099f
--- /dev/null
+++ b/tests/data/key_dsa.pub
@@ -0,0 +1 @@
+ssh-dss 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 vasko@pcvasko