Adds a favicon and some content to the landing page.

app/escriptorium/static/images/ephe.png

app/escriptorium/static/images/favicon.ico

app/escriptorium/static/images/h2020.jpg

app/escriptorium/static/images/horizon.jpg

app/escriptorium/static/images/inria.png

app/escriptorium/static/images/openiti.png

app/escriptorium/static/images/psl.png

app/escriptorium/static/images/pslscripta.png

app/escriptorium/static/images/regionidf.jpg

app/escriptorium/static/images/t1.png

app/escriptorium/static/images/t2.png

app/escriptorium/static/images/t3.png

app/escriptorium/templates/base.html

app/escriptorium/templates/core/home.html