Tagged release v0.3.0

03c0b26 Load correct API key
369dbb4 Rename secrets volume, add proocedure secret volume
b9ebac5 Rename secrets
b82515e fix ContentType for S3
d5d46c8 Fixed metadata processing for S3
b33558a Fixed created date in S3
2ed9382 Properly save content type for S3 storage