fixes #363 issues and sprint discipline
Implements Contacts
Move Conference contact details to Contact
[ci skip] Improve on issues section and meeting day
Redirect to root path if splash is not public
Merge pull request #402 from openSUSE/review_140730_363_sprint_discipline

fixes #363 issues and sprint discipline
Merge pull request #427 from gopesht/fix#309

Redirect to root path if splash is not public
Merge pull request #409 from hennevogel/refactor-conference-contact

Refactor conference contact
Refactoring Conference/Event media to new media object
close #420