Cut version 0.30.0

Also reorganized the changelog to differentiate new features, changes,
and bug fixes for both 0.30.0 and 0.29.0 (as they are large lists).

Change-Id: Ibaaa26b289cd26142a0a56d3f6b0e87438c5e675
Reviewed-on: http://gerrit.causes.com/44341
Tested-by: jenkins <jenkins@brigade.com>
Reviewed-by: Shane da Silva <shane.dasilva@brigade.com>