validate cfp start_date before end_date and end_date before conference.end_date
add username for mock credentials of openid in development
sign in user after confirmation
rubocop styling
Merge pull request #555 from differentreality/mock_credentials

add username for mock credentials of openid in development
Merge pull request #558 from differentreality/confirmations

sign in user after confirmation
Merge pull request #554 from differentreality/cfp_dates

cfp validations
Splaspage: Add highlights. Fix cfp inclusion.
add event_type keynote
fix count in spec
keynote type available only to admins. Able to mark as highlight. Highlights and Keynotes scoped.
add include_cfp to splashpage, remove old column, migrate data
do not allow creation of proposal with keynote type
add is_keynote attribute to event_types