added migration from 0.* to 0.6
migrate app names and fix failing tests
replace _ with - in app-id
make storage version instance based
Merge pull request #334 from mesosphere/wip-state-migrations-drexin

added migration from 0.* to 0.6
Changing fonts
Changing header
Changing color scheme
Reposition buttons
Add circlet badge
Task should say pending
Remove unhealthy style from task details
Restyling descriptions
Adjusting colors and line height
Re-organising forms in modals
Re-adding text-muted to description help-text
Styling modal footer according to design
Aligning brand and buttons correctly
Aligning buttons in modal header
Small color adjustments