Added favicon and special events pdf to bring this up to look/feel of wooden site.

Removed additional (and completely superfluous) styling in app.css that was otherwise making
our site look gluggy.

Mod'd fixtures (and updated db) to reflect PyCon rather than PinaxCon.

Getting the splash homepage to work via CMS.

Nearly there. Much rubbish / cruft ripped out of site_base.html and content_page.html.
Had to modify cms_pages/models.py to accommodate a "simple" layout option in the homepage
editor.
Still some stuff to do. Styling not quite there yet, but want to checkpoint this.

Started setting up static areas.
- copied lca2017 stuff
- added pyconau2016 files / dirs.