Lots of small fixes, role viewer hides save icon and some actions in

config dropdown. Snapshot dashboard hides save, star, config menu icons.
Can now embedd panel from snapshotted dashboard.

pkg/api/dashboard_snapshot.go

@@ -29,7 +29,7 @@ func CreateDashboardSnapshot(c *middleware.Context, cmd m.CreateDashboardSnapsho
 
 	metrics.M_Api_Dashboard_Snapshot_Create.Inc(1)
 
-	c.JSON(200, util.DynMap{"key": cmd.Key, "url": setting.ToAbsUrl("/dashboard/snapshots")})
+	c.JSON(200, util.DynMap{"key": cmd.Key, "url": setting.ToAbsUrl("/dashboard/snapshot")})
 }
 
 func createExternalSnapshot(c *middleware.Context, cmd m.CreateDashboardSnapshotCommand) {