Bump version to 0.9.0

In the process of updating the version, it was discovered that we were
adding a number of updates to the changelog under the 0.8.0 heading,
when we had technically already released that version.

Shuffle the new features as of 0.8.0 under the heading 0.9.0.

Change-Id: I7cea5fa5b5c5c6af46163b0538e48a1a3ac51ddf
Reviewed-on: https://gerrit.causes.com/27827
Tested-by: jenkins <jenkins@causes.com>
Reviewed-by: Lann Martin <lann@causes.com>