-do not log at DEBUG in testcases (at least not in SVN), do not print random stuff to stdout

git-svn-id: https://gnunet.org/svn/gnunet@31498 140774ce-b5e7-0310-ab8b-a85725594a96
-require gnurl 7.34

git-svn-id: https://gnunet.org/svn/gnunet@31499 140774ce-b5e7-0310-ab8b-a85725594a96
-fix #3220: typo in SQL

git-svn-id: https://gnunet.org/svn/gnunet@31500 140774ce-b5e7-0310-ab8b-a85725594a96
Fix assertion failure seen on buildbot ubuntu-armv71-evans,
build 769:

.Dec 17 21:19:40-025205 transport-20588 ERROR Assertion failed at plugin_transport_udp_broadcasting.c:253.


git-svn-id: https://gnunet.org/svn/gnunet@31501 140774ce-b5e7-0310-ab8b-a85725594a96