DEVIDM-54: Moved setAffiliation to suPerson and renamed it setAffiliations.
DEVIDM-54: Changed affiliations to enums and added tests.
Merge branch 'tomma-DEVIDM-54'

Conflicts:
	src/main/groovy/se/su/it/svc/ldap/SuPerson.groovy
	src/test/groovy/se/su/it/svc/ldap/SuPersonSpec.groovy