chore, import my take on travis ci config

to be merged as matrix build with upstream's .travis.yml

Signed-off-by: Sebastian Freundt <hroptatyr@fresse.org>
fix, add help2man to list of prerequisites

Signed-off-by: Sebastian Freundt <hroptatyr@fresse.org>
chore, bring back the original list of branches to build and people to notify about

Signed-off-by: Sebastian Freundt <hroptatyr@fresse.org>
Merge remote-tracking branch 'freundt/bld/travis'

* freundt/bld/travis:
  chore, bring back the original list of branches to build and people to notify about
  fix, add help2man to list of prerequisites
  chore, import my take on travis ci config