Merge branch 'next'

* next:
  chore, output the test-suite.log in case of an error
  chore, save and restore ac_c_werror_flag in sxe-compiler.m4
  hygiene, kick pthread bollocks and ev_async notifier typedefs from unsermon
  chore, kick -p|--port option off unsermon, the administrative channel is not variable anymore
  chore, kick inclusion of svc-uterus.h as it's not part of unserding's dist anymore
  doc, update documentation to reflect the new API's wire protocol
  fix, change MTU value again to prevent IP fragmentation
minor, spare travis some work and only build the non-DEBUG_FLAG branch

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>