Changed minor styling in popup tables' padding.
Ruler can now expand within entire tbody.
Addec classes support, in order to merge objects based on the specified classes.
Added event filters support for toggling event visibility through checkboxes. Also changed how events are rendered for performance; now there is only one div per event, whose height are updated whenever the tbody height changes.
Merge branch 'master' of github.com:yahoo/mojito-waterfall