chore, disable clang builds as they are known to miscompile

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
Revert "hack, redefine DIST_ARCHIVES to get rid of archives ..."

This reverts commit 8e1ae3775ae7b5f328e589fba5da84bd25f10a0b.
chore, adapt travis file to run the dist target on a fully populated builddir

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
minor, kick version.m4 again, put contents into c.ac

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

* bld/dist:
  minor, kick version.m4 again, put contents into c.ac
  chore, adapt travis file to run the dist target on a fully populated builddir
  Revert "hack, redefine DIST_ARCHIVES to get rid of archives ..."