Crbug: Added 'blocked' virtual property to QIssue.  Fixes Issue#169.
Crbug: Added 'blocked' virtual property to QIssue.  Fixes Issue#169.

mdittmer/foam,mdittmer/foam,foam-framework/foam,osric-the-knight/foam,jlhughes/foam,jlhughes/foam,mdittmer/foam,osric-the-knight/foam,foam-framework/foam,jacksonic/foam,foam-framework/foam,shepheb/foam,osric-the-knight/foam,shepheb/foam,jlhughes/foam,jlhughes/foam,foam-framework/foam,jacksonic/foam,shepheb/foam,foam-framework/foam,mdittmer/foam,jacksonic/foam,jacksonic/foam,osric-the-knight/foam