Execute following commands.
$ git submodule init
$ git submodule update
$ ./install.sh
Now initializing process finished.
Execute following command in vim command mode.
:NeoBundleInstall
Now vim libraries are enabled.
Firstly, check available shells.
$ cat /etc/shells
# List of acceptable shells for chpass(1).
# Ftpd will not allow users to connect who are not using
# one of these shells.
/bin/bash
/bin/csh
/bin/ksh
/bin/sh
/bin/tcsh
/bin/zsh
If you find zsh in list, you can set zsh as login shell.
chsh -s /bin/zsh
When zsh are not in list, ensure to install it. And finally, relaunch your restart your terminal.