update link to ungleich

Signed-off-by: Nico Schottelius <nico@bento.schottelius.org>
initial update for override unittests
first try of a test
testcases emulator.OverrideTestCase, with some minor bugfixes to make
test work as expected ...
Merge branch 'feature_unittest_override' of git://github.com/dheule/cdist
cdist 3.0.7

Signed-off-by: Nico Schottelius <nico@bento.schottelius.org>
update reference

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