Added first function: mean

Signed-off-by: Matthias Kümmerer <matthias@matthias-k.org>
Bugfix

Signed-off-by: Matthias Kümmerer <matthias@matthias-k.org>
First test for mean

Signed-off-by: Matthias Kümmerer <matthias@matthias-k.org>
setup.py

Signed-off-by: Matthias Kümmerer <matthias@matthias-k.org>
Documentation template

Signed-off-by: Matthias Kümmerer <matthias@matthias-k.org>
Merge pull request #1 from matthias-k/master

Initial package structure with first ported function