Moved "hide-gt-sm" class in sidenav demo. (#522)
Moved "hide-gt-sm" class in sidenav demo. (#522)

`paper-sidenav-toggle` now has a `tagName` of `''` so adding a class to it doesn't appear to work. As a result `Toggle` is visible on all screen sizes.
Blooie/ember-paper,stonecircle/ember-paper,xomaczar/ember-paper,PartCycleTech/ember-paper,pauln/ember-paper,cogniteev/ember-paper,bjornharrtell/ember-paper,jamesdixon/ember-paper,bjornharrtell/ember-paper,mnutt/ember-paper,joukevandermaas/ember-paper,joukevandermaas/ember-paper,tmclouisluk/ember-paper,baroquon/ember-paper,xomaczar/ember-paper,Blooie/ember-paper,JustInToCoding/ember-paper,tmclouisluk/ember-paper,bjornharrtell/ember-paper,cogniteev/ember-paper,mnutt/ember-paper,jamesdixon/ember-paper,miguelcobain/ember-paper,baroquon/ember-paper,miguelcobain/ember-paper,stonecircle/ember-paper,PartCycleTech/ember-paper,pauln/ember-paper,pauln/ember-paper,xomaczar/ember-paper,baroquon/ember-paper,stonecircle/ember-paper,mnutt/ember-paper,jamesdixon/ember-paper,miguelcobain/ember-paper,tmclouisluk/ember-paper,JustInToCoding/ember-paper,PartCycleTech/ember-paper,joukevandermaas/ember-paper,JustInToCoding/ember-paper,cogniteev/ember-paper