global: Invenio-Demosite 2.0.0.dev20140725

* NOTE adds requirement to maximal Invenio version <1.9999.1 to detect
  API changes in development version.

Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>
installation: bower base configuration

* Defines .bowerrc for the static files.

* Adds base file to create the bower.json.

* Ignores the bower.json and vendors.

Signed-off-by: Yoan Blanc <yoan.blanc@cern.ch>
installation: development in extras_require

* Adds the Flask Debugtoolbar.

* Adds setuptools-bower.

Signed-off-by: Yoan Blanc <yoan.blanc@cern.ch>