bump, release v0.4.0 is imminent

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
fix, change MTU value again to prevent IP fragmentation

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
doc, update documentation to reflect the new API's wire protocol

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
Merge branch 'core/api' into next

* core/api:
  fix, change MTU value again to prevent IP fragmentation
Merge branch 'doc/general' into next

* doc/general:
  doc, update documentation to reflect the new API's wire protocol
chore, kick inclusion of svc-uterus.h as it's not part of unserding's dist anymore

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, kick -p|--port option off unsermon, the administrative channel is not variable anymore

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
hygiene, kick pthread bollocks and ev_async notifier typedefs from unsermon

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
Merge branch 'tool/unsermon' into next

* tool/unsermon:
  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
chore, save and restore ac_c_werror_flag in sxe-compiler.m4

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, output the test-suite.log in case of an error

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
Merge branch 'bld/dist' into next

* bld/dist:
  chore, output the test-suite.log in case of an error
  chore, save and restore ac_c_werror_flag in sxe-compiler.m4