[Azoth Murm] VkConnection::FindRunning().
[Azoth Murm] Remove reply from running after it has finished.
[Azoth Murm] Moved rescheduling to a special function.
[Azoth Murm] Reschedule request on unauth user.
[Azoth Murm] Added CaptchaDialog.
[Azoth Murm] Detect captcha error & signal for it.
[Azoth Murm] Show captcha dialog.