Questionable auto mode selection  #222

I feel mode 2 should not be used by default in most cases. I set mode 10 (ksud umount) on every setup.
RZ or ZN, hosts are detected in some detectors on my setup with mode 2.

Also, susfs try_umount is deprecated a long time ago. Some people port it, but it is not mainstream.
ksu_source_mod is also old ksuv1 thing

I tried using folkpatch on my device with proprietary kernel, but still not decided what mode to use