'AlertLog' & 'ItemLog' domain objects are renamed into 'AlertHistory' and 'ItemHistory'.

	renamed:    grails-app/domain/rapideca/plugins/rbm/entity/AlertLog.groovy -> grails-app/domain/rapideca/plugins/rbm/history/AlertHistory.groovy
	renamed:    grails-app/domain/rapideca/plugins/rbm/entity/ItemLog.groovy -> grails-app/domain/rapideca/plugins/rbm/history/ItemHistory.groovy
	renamed:    test/unit/rapideca/plugins/rbm/entity/AlertLogSpec.groovy -> test/unit/rapideca/plugins/rbm/history/AlertHistorySpec.groovy
	renamed:    test/unit/rapideca/plugins/rbm/entity/ItemLogSpec.groovy -> test/unit/rapideca/plugins/rbm/history/ItemHistorySpec.groovy