Added various files to integrate julia. Still not working.

autoload/ale/julia.vim

@@ -1,4 +1,10 @@
-" Set just so tests can override it.
+" Author: Bartolomeo Stellato bartolomeo.stellato@gmail.com
+" Description: Functions for integrating with Julia tools
+
+" Set julia executable variable
+call ale#Set('julia_executable', 'julia')
+
+" Find the nearest dir contining a git project as julia project
 let g:__ale_julia_project_filenames = ['.git/HEAD']
 function! ale#julia#FindProjectRoot(buffer) abort
     for l:project_filename in g:__ale_julia_project_filenames