new migrations and models, removed old ones, removed tests
correct user sample data
change cohorts to college years
remove cohort leftovers
project updates
change client link table order
merge conflict solved
Merge branch 'new_datastructure' of https://github.com/Zwooosh/MT-Identity into new_datastructure
changed chema..
change cards to groups
Merge branch 'new_datastructure' of github.com:Zwooosh/MT-Identity into new_datastructure
newwwwwwww schema
few translations and minor name changes
project groups
remove description from college year
Merge branch 'new_datastructure' of github.com:Zwooosh/MT-Identity into new_datastructure

Conflicts:
	app/views/dashboard/college_years/_form.html.haml
	app/views/dashboard/college_years/show.html.haml
project groups to teams
Fix project vieuws / controller + add preview image
add default project images
fix image upload groups