Install Vim:

$ sudo apt-get install vim

Download configuration

$ cd
$ rm -rf .vim .vimrc
$ git clone https://github.com/jarsonfang/vimconfig.git
$ ln -s vimconfig/vim .vim
$ ln -s vimconfig/vimrc .vimrc

Install vim plugins

Launch vim and run :PlugInstall command or run vim +PlugInstall +qall from command line directly.
After done that, please go to https://github.com/Valloric/YouCompleteMe or use :help youcompleteme command to see more about the installation of YouCompleteMe plugin.

Install powerline fonts

$ git clone https://github.com/powerline/fonts.git
$ cd fonts && ./install.sh

after powerline fonts installed, configure the terminal to use one of the powerline fonts.

Install dependency for mhinz/vim-grepper

$ sudo apt-get install silversearcher-ag

Install dependencies for suan/vim-instant-markdown

$ sudo apt-get install xdg-utils curl nodejs npm
$ sudo npm -g install instant-markdown-d

References

1. http://www.cnblogs.com/zhongcq/p/3642794.html
2. http://blog.csdn.net/fivedoumi/article/details/50594348
3. http://easwy.com/blog/archives/advanced-vim-skills-catalog/