Portals: some corrections.

Portals: some corrections.

	* src/main/java/org/glom/web/client/activity/DetailsActivity.java
	setData():
	* src/main/java/org/glom/web/client/ui/details/RelatedListTable.java:
	constructor: Use getRelationshipNameUsed() instead of getName(), because
	that is what is meant.
	* src/main/java/org/glom/web/shared/libglom/layout/LayoutItemPortal.java:
	getFromField(): Fix a typo, to get the field name, not the table name.
	* src/main/java/org/glom/web/server/database/DBAccess.java:
	getPortal(): Fix a typo that stopped this from working.