[Feature request] Add mapping layer.

I feel it's incomplete to this plugin that lacks mapping feature to quick switch between buffers. Do you think?

Like vim-airline's implementation?

[tawtao]

Add this to your .vimrc would help to quickly switch between buffers.

noremap <C-left> :bprev<CR>                                                                              
noremap <C-right> :bnext<CR>