Bump up to v7.5 for official 4.4.3 release

Change-Id: I5e3b3b7c656ebbec7436afc3b8cd8e150f99461b
Remove Kernel Tweaker 2/3

Change-Id: If77b1199fd8792fb9d73075119fbdd24735cc913
Add installer persistence [3/3]

Change-Id: I569dcfaab4d4c69b2eb1881e335b810002888afa
Merge "Bump up to v7.5 for official 4.4.3 release" into du44
Merge branch 'du44' of https://github.com/DirtyUnicorns-KitKat/vendor_du into du-nozomi