Some changes to make GPE and Sense ROMs work

Most of it is  changing the hook to comment-out mount in RC files. Then I changed dpi to xhdpi (it looks fine on N5, should be okay on m7) and added /dev/fuse to mr_init_devices.c (exFAT uses it).

I saw that you've updated MultiROM to v19 already, you can use VERSION_DEV_FIX define in version.h to release "v19a" with these changes.