updated plugins and added eslint goodies

sources_non_forked/goyo.vim/autoload/goyo.vim

@@ -33,7 +33,7 @@ function! s:get_color(group, attr)
 endfunction
 
 function! s:set_color(group, attr, color)
-  let gui = has('gui_running')
+  let gui = a:color =~ '^#'
   execute printf("hi %s %s%s=%s", a:group, gui ? 'gui' : 'cterm', a:attr, a:color)
 endfunction
 
@@ -106,7 +106,7 @@ function! s:resize_pads()
 endfunction
 
 function! s:tranquilize()
-  let bg = s:get_color('Normal', 'bg')
+  let bg = s:get_color('Normal', 'bg#')
   for grp in ['NonText', 'FoldColumn', 'ColorColumn', 'VertSplit',
             \ 'StatusLine', 'StatusLineNC', 'SignColumn']
     " -1 on Vim / '' on GVim
@@ -269,7 +269,9 @@ function! s:goyo_on(dim)
   if exists('g:goyo_callbacks[0]')
     call g:goyo_callbacks[0]()
   endif
-  silent! doautocmd User GoyoEnter
+  if exists('#User#GoyoEnter')
+    doautocmd User GoyoEnter
+  endif
 endfunction
 
 function! s:goyo_off()
@@ -344,6 +346,9 @@ function! s:goyo_off()
 
   if goyo_disabled_airline && !exists("#airline")
     AirlineToggle
+    " For some reason, Airline requires two refreshes to avoid display
+    " artifacts
+    silent! AirlineRefresh
     silent! AirlineRefresh
   endif
 
@@ -363,7 +368,9 @@ function! s:goyo_off()
   if exists('g:goyo_callbacks[1]')
     call g:goyo_callbacks[1]()
   endif
-  silent! doautocmd User GoyoLeave
+  if exists('#User#GoyoLeave')
+    doautocmd User GoyoLeave
+  endif
 endfunction
 
 function! s:relsz(expr, limit)
@@ -414,6 +421,10 @@ function! goyo#execute(bang, dim)
     if exists('#goyo') == 0
       call s:goyo_on(a:dim)
     elseif !empty(a:dim)
+      if winnr('$') < 5
+        call s:goyo_off()
+        return goyo#execute(a:bang, a:dim)
+      endif
       let dim = s:parse_arg(a:dim)
       if !empty(dim)
         let t:goyo_dim = dim