psyc: fix timing-related test failure

git-svn-id: https://gnunet.org/svn/gnunet@34028 140774ce-b5e7-0310-ab8b-a85725594a96
psyc,social: fix linking for tests

git-svn-id: https://gnunet.org/svn/gnunet@34029 140774ce-b5e7-0310-ab8b-a85725594a96
xvine:fixes


git-svn-id: https://gnunet.org/svn/gnunet@34030 140774ce-b5e7-0310-ab8b-a85725594a96
test_psycstore: use ecdsa keys where appropriate

git-svn-id: https://gnunet.org/svn/gnunet@34031 140774ce-b5e7-0310-ab8b-a85725594a96
test_plugin_psycstore: use ecdsa keys where appropriate

git-svn-id: https://gnunet.org/svn/gnunet@34032 140774ce-b5e7-0310-ab8b-a85725594a96