Added a new function to handle absence of affiliations.
Added NPE checks to ensure functionality.

fixes rSmart/issues#221
fixes rSmart/issues#243
Merge branch 'feature/web-npe-fix' of https://github.com/leo-at-rsmart/kuali_kc into feature/web-npe-fix

Conflicts:
	src/main/java/com/rsmart/kuali/kra/web/jstl/PortalFunctions.java