Fix TESTS_ENVIRONMENT setting (allow GNUNET_PREFIX to be overriden, allow TESTS_ENVIRONMENT to be overrided (use AM_TESTS_ENVIRONMENT))

git-svn-id: https://gnunet.org/svn/gnunet@32149 140774ce-b5e7-0310-ab8b-a85725594a96
Add required HOSTNAME to test config

git-svn-id: https://gnunet.org/svn/gnunet@32150 140774ce-b5e7-0310-ab8b-a85725594a96
-indentation, doxygen

git-svn-id: https://gnunet.org/svn/gnunet@32151 140774ce-b5e7-0310-ab8b-a85725594a96
-indentation, doxygen

git-svn-id: https://gnunet.org/svn/gnunet@32152 140774ce-b5e7-0310-ab8b-a85725594a96
removing depreated 'priority' argument from GNUNET_TRANSPORT_notify_transmit_ready

git-svn-id: https://gnunet.org/svn/gnunet@32153 140774ce-b5e7-0310-ab8b-a85725594a96