Update SuperSU for 4.3 SELinux, 2.6.1.0

Change-Id: Ib7f882db8a8c61d1156c03468208205124132b6c
Fix backup list height on 1080x1920
ignore extra = on install cmd

Change-Id: If9a0e6d4c00f6dd79f76c68ed0370a3101211801
Really fix TWFunc::tw_chmod() for 3-character mode string

Signed-off-by: Vojtech Bocek <vbocek@gmail.com>

Change-Id: I8f03d46235e1c71e8ee510309c9418cde802f50b
Better compatibility by fixing up ext4 & selinux flags
implement "usermrf" fstab flag to force rm -rf * deletion on specific partitions

Change-Id: I58f4a8cedf31e6b6efd88f96a43ed525603ae311
Initialize TWPartition::User_Rm_Rf to false in constructor

Signed-off-by: Vojtech Bocek <vbocek@gmail.com>