v1.3.1-etcd.7

Breaking changes

• Code is now hosted at https://github.com/etcd-io/bbolt
• Package name and its import path has been changed to go.etcd.io/bbolt
• See https://github.com/etcd-io/bbolt#importing-bbolt

Code changes

• etcd-io/bbolt#73 bolt_ppc.go: define var brokenUnaligned
• etcd-io/bbolt#75 cursor: remove redundant check when seek
• etcd-io/bbolt#80 Close waits for the transactions to finish
• etcd-io/bbolt#82 Madvise optional
• etcd-io/bbolt#87 add tx-copy-deprecated
• etcd-io/bbolt#89 clean up file descriptor on init/read failures
• etcd-io/bbolt#91 Fix Close() to also wait for view transactions and fix tests as well