do not package .swp files (fixes #269)

Signed-off-by: Nico Schottelius <nico@bento.schottelius.org>
bugfixes for issue 161 and FIXME: also check that there is no object ID
when type is singleton?
completed copyright infos ...
add document to describe the flow when installing

Signed-off-by: Nico Schottelius <nico@bento.schottelius.org>
++changes

Signed-off-by: Nico Schottelius <nico@bento.schottelius.org>
Merge branch 'master' into 4.0-pre-not-stable
Merge branch 'master' into install_integration
Merge branch 'master' into preos
run apt-get clean before creating preos

Signed-off-by: Nico Schottelius <nico@bento.schottelius.org>
Merge branch 'install_integration' into 4.0-pre-not-stable
Merge branch 'preos' into 4.0-pre-not-stable
add an unittest for CDIST_ORDER_DEPENDENCY
Merge branch 'feature_unittest_CDIST_ORDER_DEPENDENCY' of https://github.com/dheule/cdist into 4.0-pre-not-stable