minor, support -v|--verbose

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

* feat/verbose:
  minor, support -v|--verbose
doc, update README.md to reflect newly featured -v|--verbose

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
minor, provide simple shell script to turn example command lines into [EXAMPLES] for inclusion in the man page

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, check for help2man through AM_MISSING_PROG

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
doc, build man page strerror(1) via help2man with examples from the genh2m.sh script

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, kick old hand-crafted strerror.1

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

* doc/general:
  chore, kick old hand-crafted strerror.1
  doc, build man page strerror(1) via help2man with examples from the genh2m.sh script
  chore, check for help2man through AM_MISSING_PROG
  minor, provide simple shell script to turn example command lines into [EXAMPLES] for inclusion in the man page
  doc, update README.md to reflect newly featured -v|--verbose
chore, add help2man to travis ci requisites

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