Bump version to 4.0.1

Author: damianlegawiec

lib/spree_static_content/version.rb

@@ -10,7 +10,7 @@ def version
   module VERSION
     MAJOR = 4
     MINOR = 0
-    TINY  = 0
+    TINY  = 1
 
     STRING = [MAJOR, MINOR, TINY].compact.join('.')
   end