Magisk Manager

The project can only be compiled on Android Studio Version 2.2.0+
I use Java 8 features, which requires Jack compiler and that's only available 2.2.0+

Prebuild Binaries

libbusybox.so

Static BusyBox binary by @yashdsaraf
Link and source: http://forum.xda-developers.com/showthread.php?t=3348543

libzip.so

Static ndk-built info-zip
NDK makefiles: https://github.com/cloudchou/ndkzip
Info-Zip source: https://sourceforge.net/projects/infozip/
bzip2 source: http://www.bzip.org/