Fix #1115 - Add support for wrapping all commands with an option

plugin/ale.vim

@@ -209,6 +209,9 @@ call ale#Set('completion_enabled', 0)
 call ale#Set('completion_delay', 100)
 call ale#Set('completion_max_suggestions', 50)
 
+" A setting for wrapping commands.
+call ale#Set('command_wrapper', '')
+
 if g:ale_set_balloons
     call ale#balloon#Enable()
 endif