UI buffer open in a new tab page instead of vertical split.

Package installation is a separator thing with current work flow. It's better to open in a new tab page.

plugin/jetpack.vim

@@ -188,7 +188,7 @@ endif
 
 function! jetpack#initialize_buffer() abort
   execute 'silent! bdelete!' bufnr('JetpackStatus')
-  silent 40vnew +setlocal\ buftype=nofile\ nobuflisted\ nonumber\ norelativenumber\ signcolumn=no\ noswapfile\ nowrap JetpackStatus
+  silent tabnew +setlocal\ buftype=nofile\ nobuflisted\ nonumber\ norelativenumber\ signcolumn=no\ noswapfile\ nowrap JetpackStatus
   syntax clear
   syntax match jetpackProgress /^[a-z]*ing/
   syntax match jetpackComplete /^[a-z]*ed/