How to install Android 4.4 kitkat launcher on your Andorid jelly bean smartphone

Google has recently launched the latest version of Android OS, Android 4.4 kitkat along with Nexus 5. This latest version has lot of new features with minor changes in its user interface. To install the new Android 4.4kitkat launcher, first download the file from here. It contains three files

PreBuiltGmsCore.apk
Velvet.apk
GoogleHome.apk

Install these three apk files, after installation select the new Launcher as the default launcher.