upgrade for golang 1.17 (ref: etcd-io/bbolt#297)

Merge pull request boltdb#703 from nilslice/patch-1

Add Ponzu CMS to list of projects using Bolt

Merge pull request boltdb#584 from benbjohnson/go17

Fix Go 1.7 pointer reference bug

Merge pull request boltdb#431 from brahmaroutu/support_power_z

adding seperate files to compile on IBM Power and Z

Merge pull request boltdb#128 from benbjohnson/import-export

Add import/export to CLI.