Update README.md

added workon option to launching instructions
new coordinated menu inserted
footer and logo fix
fixed words on participant page to make e-luminate hyphen look right
working new dates
Added meta tag for og scraped image
Added meta tag for og scraped image -- second try
added 'with' to the collaborator names snippet
moved the 'you can limit the listed events ...' text to event_map.html, so it only appears on main screen
Added event photo option
added migration
Days initial data deleted -- dangerousgit status
fixed rounded corners on event logos, and disabled sort of events to avoid dropping some
Bringing 2014_1.6 up to master