Issue 8 in marsonpharo: migrate old event mechanism to announcement

Status: Accepted
Owner: [hidden email]
Labels: Type-Defect Priority-Medium Milestone-Release1.0

New issue 8 by [hidden email]: migrate old event mechanism to  
announcement
http://code.google.com/p/marsonpharo/issues/detail?id=8

We use announcements to trigger events, but there are some remaining cases,  
like MRButton>>#onAction:, who still uses old mechanism.
We need to clean this.