reverted storage on s3, we save before on a predefined path and then on s3, because storing directly on s3 not works well
print more info on Exception of feeding objectStore
implemented ObjectStores3 to avoid to saving tmp file before putting on s3 and added rest controller to download object from s3, used only by UI
modified S3ObjectStore to store directly on s3 without store it on tmp files
resovled bug of lot of tmp file created
fixed bucket name
hanged visibility to some static parameter
fix NPE
First Implementation of ObjectStore S3 complete
Added standard maven folder