Fix reload module problem on windows

data/core/common.lua

@@ -228,4 +228,14 @@ function common.home_expand(text)
 end
 
 
+function common.normalize_path(filename)
+  if PATHSEP == '\\' then
+    filename = filename:gsub('[/\\]', '\\')
+    local drive, rem = filename:match('^([a-zA-Z])(:.*)')
+    return drive and drive:upper() .. rem or filename
+  end
+  return filename
+end
+
+
 return common