SBSyncController

1. Kill all applications in switcher

   [(SBSyncController *)[NSClassFromString(@"SBSyncController") sharedInstance] _killApplications];
   //remove the identifiers from sbappswitchermodel
   if (IS_OS_7_OR_UNDER) {
      [[[NSClassFromString(@"SBAppSwitcherModel") sharedInstance] valueForKey:@"_recentDisplayIdentifiers"] removeAllObjects];
   }
   else { //iOS 8
      [[[NSClassFromString(@"SBAppSwitcherModel") sharedInstance] valueForKey:@"_recentDisplayLayouts"] removeAllObjects];
   }