Fix #373 - echo the cursor message after lint cycles or when leaving Insert mode

autoload/ale/engine.vim

@@ -268,6 +268,12 @@ function! ale#engine#SetResults(buffer, loclist) abort
     if g:ale_set_highlights
         call ale#highlight#SetHighlights(a:buffer, a:loclist)
     endif
+
+    if g:ale_echo_cursor
+        " Try and echo the warning now.
+        " This will only do something meaningful if we're in normal mode.
+        call ale#cursor#EchoCursorWarning()
+    endif
 endfunction
 
 function! s:SetExitCode(job, exit_code) abort