Add base authorizers (close #7)
Some layouts refactoring #8
Add promo block on welcome page (refs #8)
Add events cell #8
Remove site model
Remove old migrations
Fix promo block
Manage user roles
Add dashboard
Add manage user info (base)
Add manage my presentations
Add authorizer for moderate self presentations
Modern redactor added!!!
Change ignore user uploads and other assets
Add sample sidebar
Some navigation fixes, move redactor to admin section
add manage password, change presentation markup
Set profile header styles
Add simple profile menu
Added event for presentation