rename transaction to visitor
Merge branch 'rodel'

Conflicts:
	src/main/webapp/WEB-INF/views/staff/create.jspx
	src/main/webapp/WEB-INF/views/staff/list.jspx
	src/main/webapp/WEB-INF/views/staff/show.jspx
	src/main/webapp/WEB-INF/views/staff/update.jspx