Update CHANGELOG.md for v1alpha2-rc2

[youngnick]

What type of PR is this?
/kind documentation

What this PR does / why we need it:
Updates the changelog for v1alpha2-rc2 release.

[robscott]

Thanks for the work on this @youngnick! Just a couple non-blocking nits.

/lgtm
/hold

[robscott]

For sig-network review and approval:

/cc @danwinship @khenidak @thockin

[hbagdi]

LGTM. This is an exciting release.

We should consider folding the RC entities within the changelog to a single 0.3.0, 0.4.0 entries. The end users don't really care about rc releases after a final GA and it is more burdensome for them to parse the changelog in this format.

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hbagdi, youngnick

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [hbagdi,youngnick]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[youngnick]

We should consider folding the RC entities within the changelog to a single 0.3.0, 0.4.0 entries. The end users don't really care about rc releases after a final GA and it is more burdensome for them to parse the changelog in this format.

I was thinking that I'll do this once we are releasing 0.4.0 final. That way, until we do that, there's some versioning info available for implementors.

[khenidak]

/lgtm

Thanks

[robscott]

Thanks for adding in #894 @youngnick! Both @andrewsykim and @danwinship have given the all clear to release without waiting for final rounds of review from them. Once we have an LGTM from @thockin I think we'll be good to go.

/lgtm

[thockin]

/lgtm

[robscott]

Thanks @youngnick!

/lgtm
/hold cancel