Changed 'Q' to intelligently close window or kill buffer if it's the last one

vim/plugin/settings/window-killer.vim

@@ -0,0 +1,12 @@
+" Use Q to intelligently close a window 
+" (if there are multiple windows into the same buffer)
+" or kill the buffer entirely if it's the last window looking into that buffer
+function! CloseWindowOrKillBuffer()
+  if(bufwinnr('%')) > 1
+    wincmd c
+  else
+    bdelete
+  endif
+endfunction
+
+nnoremap <silent> Q :call CloseWindowOrKillBuffer()<CR>