Replaced File.canRead() test in S3Object file-based constructor to use the exists() test instead, as canRead() returns a misleading negative result for resource forks on Mac OS X
Replaced File.canRead() test in S3Object file-based constructor to use the exists() test instead, as canRead() returns a misleading negative result for resource forks on Mac OS X

ind9/jets3t,ind9/jets3t,ind9/jets3t,ind9/jets3t