add format validation to events
add a date_joined field
filter by date joined
add a date_joined field
Merge branch 'master' into production

Conflicts:
	app/main/admin.py
production: add github login
server https callbacks in prod
production: add down arrow next to name
production: add a delay to pageload, so animations are visible
production: markdown add margin below headings
add event analytics
modify event admin
add debug toolbar in dev mode