vim command-T key bindings for easier use

Interface with command-T a little easier with these key bindings

let g:CommandTCancelMap = ['<ESC>', '<C-c>']

let g:CommandTSelectNextMap = ['<C-n>', '<C-j>', '<ESC>OB']

let g:CommandTSelectPrevMap = ['<C-p>', '<C-k>', '<ESC>OA']