Fix labels and add better tests.

Signed-off-by: Yoan Blanc <yoan.blanc@cern.ch>
Merge pull request #20 from greut/fix-labels

Fix labels and add better tests.
Tox testing support

* Adds tox.ini to support easy testing in multiple Python
  versions.

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>
Local git hooks support

* Adds support for integrating Invenio Kwalitee in local
  git repository hooks.

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>
Merge pull request #21 from lnielsen-cern/hooks

Local git hooks support