Bug with viewlets being appended in inspector
Bug with viewlets being appended in inspector

Viewlets in default slot are not being hidden due to a previous branch.  This hides viewlets without a 'slot' attribute.

R=benjamin.saller, jeff.pihach
CC=
https://codereview.appspot.com/11465044

CanonicalJS/juju-gui,bac/juju-gui,bac/juju-gui,mitechie/juju-gui,jrwren/juju-gui,CanonicalJS/juju-gui,jrwren/juju-gui,bac/juju-gui,CanonicalJS/juju-gui,jrwren/juju-gui,mitechie/juju-gui,mitechie/juju-gui,bac/juju-gui,jrwren/juju-gui,mitechie/juju-gui