Fixes authorization.

Adds GRANT and REVOKE statements for admin privilege. Adds authorization to the query endpoint.

Update CHANGELOG for PR 3217

[ci skip]

Copy latest packaging script to 0.9.1

Merge pull request influxdata#3146 from influxdb/snapshots-3014

Implement snapshots

Update CHANGELOG.md for v0.9.0

Update CHANGELOG.md for RC33

Update CHANGELOG.md

Reset +x on package.sh

Release RC30

[ci skip]

Update CHANGELOG.md