修改回傳的JSON訊息
Add submodule 'Material' into version control
add Download Material zip
add Rewrite htdocs/API/v1/Material/DownloadZip.zip
fix htdocs/API/v1/Material/DownloadZip.php
fix htdocs/API/v1/Material/DownloadZip.php
README.md: Add vhost Guide & Add clone repo Guide
Merge branch 'master' into publish