Merge pull request etcd-io#28 from gyuho/goreport

goreport + minor fixes

Merge pull request etcd-io#12 from heyitsanthony/skip-freelist-overflow

freelist: read all free pages on count overflow

Merge pull request etcd-io#584 from benbjohnson/go17

Fix Go 1.7 pointer reference bug

Merge pull request etcd-io#431 from brahmaroutu/support_power_z

adding seperate files to compile on IBM Power and Z

Merge pull request etcd-io#128 from benbjohnson/import-export

Add import/export to CLI.