update ctrlspace bufferline to use clickbuf()
update ctrlspace bufferline to use clickbuf()

bling/vim-airline,tschundler/dotfiles,yzhou61/vim-airline,dalguji/vim-airline,tschundler/dotfiles,vim-IDE/vim-airline,tschundler/dotfiles,chrisbra/vim-airline,HarmtH/vim-airline,rchicoli/vim-airline,unphased/vim-airline