bump, go back to git version numbers after v0.1.1 release

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, move git-version-gen script to build-aux/

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

* bld/dist:
  chore, move git-version-gen script to build-aux/
  bump, go back to git version numbers after v0.1.1 release