Install Xposed [Any device arm,arm64,x86) ]
Link : http://dl-xda.xposed.info/framework/
Full Zip: https://drive.google.com/file/d/0B_NR...
Extract this zip
You will find: Gravity Box,A zip file for arm,sdk21 & also Xposed Installer.apk
Flash arm sdk21.zip if it matches you ,otherwise ignore it.Download as I showed.