~/.vimrc: Add shortcuts for moving between windows.

.vimrc

noremap   <Down>   <NOP>
noremap   <Left>   <NOP>
noremap   <Right>  <NOP>
" Move easier between windows
noremap <C-h> <C-w>h
noremap <C-j> <C-w>j
noremap <C-k> <C-w>k
noremap <C-l> <C-w>l
" remaps
noremap U <c-r>
noremap <c-r> q