Add documentation on 'getting up and running'

Some hopefully usefully instructions to help people get up and running.

Re: Issue #34 On my machine I didn't need to install memcached to successfully install the local requirements.

Re: Issue #39 I've linked to this issue for now. It would be good to remove the need for those steps and then this link can be removed.
Add @knitatoms
Change DJANGO_SETTINGS_MODULE to config.settings

It was previously {{cookiecutter.project_name}}.config.settings
Include html5shim with protocol-relative url
Add @juliocc to contributors
Update Django requirement to version 1.6.2