message: remove sometimes problematic checking of md5 checksum
diff: @@ -176,7 +176,7 @@ def download_file(alien_path, local_path):
  except OSError:
  pass
  alien_path = "alien:/" + alien_path
  - cp_cmd = ['alien_cp', '-m', '-s', alien_path, local_path]
  + cp_cmd = ['alien_cp', '-v', '-s', alien_path, local_path]
  p = subprocess.Popen(cp_cmd,
  stdout=subprocess.PIPE,
  stderr=subprocess.STDOUT)
  @@ -208,7 +208,7 @@ def get_generator_name_from_train(alien_path):
  if not alien_path.startswith("alien:"):
  alien_path = "alien:/" + alien_path
  path_to_env = os.path.join(os.path.split(alien_path)[0], "..", "env.sh")
  - cp_cmd = ['alien_cp', '-m', '-s', path_to_env, ".env.sh"]
  + cp_cmd = ['alien_cp', '-v', '-s', path_to_env, ".env.sh"]
  print "copying with: %s"%cp_cmd
  subprocess.check_call(cp_cmd)
  with open(".env.sh") as f:
  