URL signature expired when downloading ASE mesh files

[happinesslz]

@hlzz Thanks for your great work! I try to download the ASE mesh files by running python download_ase_mesh.py. But it causes an error:
Error: Shasum mismatch for scene_ply_81022.zip, 3c47de0b8adaca2b257f236519fa5c5cdd6f01ab != ecfcbfd76ed6079810d4305ddb718a84739b25bb

[hlzz]

Hi @happinesslz thanks for reporting the error. I just checked and found the error was due to the expired files. I will address this asap.