See also README.txt.

- fix S3 PM/Bundle PM (pass all JCR API tests):
  Problem: HTTP calls to S3 hang every now and then forever; need a timeout and a retry,
  but I couldn't quickly figure out how (needs tweaking of jets3t lib + apache commons
  http client below)

- FileSystem implementation for S3 (o.a.j.fs.amazon.AmazonS3FileSystem)
- DataStore for S3 (Jackrabbit 1.4): http://wiki.apache.org/jackrabbit/DataStore
- SPI implementation S3 (how much effort is needed?)