Users: Tab indexes, errors notifications
Fix logout
Projects: tabindex, notify, needs admin
Init sprint and product, fix navigation order
Notification login
Fix main link to be login if not loggedin
Model for user story (no link to sprint yet)
Merge branch 'master' of github.com:edofic/scrumble
Merge pull request #4 from lukaw3d/feature-notifications

Notifications
Sprint, product init fix
Merge branch 'feature-notifications'