"Fix" for HBRespringController respringAndReturnTo: method freezing

Prefs.m

#import "spawn.h"
#import "Prefs.h"
#import <Cephei/HBRespringController.h>

@implementation PrefsController
- (void)respring {

  [HBRespringController respringAndReturnTo:[NSURL URLWithString:@"prefs:root=YourPrefs"]];

		dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{

			pid_t pid;
    		const char *args[] = {"killall", "backboardd", NULL};

			posix_spawn(&pid, "/usr/bin/killall", NULL, NULL, (char *const *)args, NULL);

		});

}
@end