Bump version to 1.3.0-SNAPSHOT
Bump version to 1.3.0-SNAPSHOT

1.2.0 released several months ago.

kahing/s3proxy,bouncestorage/s3proxy,andrewgaul/s3proxy,timuralp/s3proxy,bouncestorage/s3proxy,flandr/s3proxy,andrewgaul/s3proxy,kahing/s3proxy,timuralp/s3proxy,flandr/s3proxy