add command line javascript lint.

stack/erp5/buildout.cfg

@@ -64,6 +64,7 @@ extends =
   ../../component/wget/buildout.cfg
   ../../component/aspell/buildout.cfg
   ../../component/cloudooo/buildout.cfg
+  ../../component/jsl/buildout.cfg
 
 parts =
   rdiff-backup
@@ -74,6 +75,7 @@ parts =
   file
   graphviz
   haproxy
+  jsl
   varnish-3.0
   w3m
   poppler
@@ -392,6 +394,7 @@ initialization =
   sys.path[:0] = sum((
     glob.glob(os.path.join(x, 'Products', '*', 'tests'))
     for x in os.getenv('INSERT_PRODUCTS_PATH', '').split(os.pathsep)), [])
+  os.environ['PATH'] = '${jsl:location}/bin:%s' % os.environ['PATH']
   os.environ['CGI_PATH'] = '${w3-validator:location}/httpd/cgi-bin'
 
 [test_suite_runner]