Replace airline with lightline (much better perfomance)

README.md

@@ -73,13 +73,13 @@ I recommend reading the docs of these plugins to understand them better. Each of
 * [vim-indent-object](https://github.com/michaeljsmith/vim-indent-object): Defines a new text object representing lines of code at the same indent level. Useful for python/vim scripts
 * [vim-multiple-cursors](https://github.com/terryma/vim-multiple-cursors): Sublime Text style multiple selections for Vim, CTRL+N is remapped to CTRL+S (due to YankRing)
 * [vim-expand-region](https://github.com/terryma/vim-expand-region): Allows you to visually select increasingly larger regions of text using the same key combination.
-* [vim-airline](https://github.com/bling/vim-airline): Lean & mean status/tabline for vim that's light as air (replacing powerline)
 * [vim-fugitive](https://github.com/tpope/vim-fugitive): A Git wrapper so awesome, it should be illegal
 * [goyo.vim](https://github.com/junegunn/goyo.vim) and [vim-zenroom2](https://github.com/amix/vim-zenroom2): 
 Remove all clutter and focus only on the essential. Similar to iA Writer or Write Room [Read more here](http://amix.dk/blog/post/19744)
 * [vim-commentary](https://github.com/tpope/vim-commentary): Comment stuff out.  Use `gcc` to comment out a line (takes a count), `gc` to comment out the target of a motion. `gcu` uncomments a set of adjacent commented lines.
 * [syntastic](https://github.com/scrooloose/syntastic): Syntax checking hacks for vim
 * [vim-yankstack](https://github.com/maxbrunsfeld/vim-yankstack): Maintains a history of previous yanks, changes and deletes
+* [lightline.vim](https://github.com/itchyny/lightline.vim): A light and configurable statusline/tabline for Vim
 
 
 ## Included color schemes