Wrap up changelog for release

[skip ci]

CHANGELOG.md

@@ -1,7 +1,7 @@
 # Squib CHANGELOG
 Squib follows [semantic versioning](http://semver.org).
 
-## v0.10.0 / Unreleased
+## v0.10.0 / 2016-05-06
 
 Features:
 * Build groups! Simplify the process of building your deck different ways (e.g. one for color, one for PNP). Can be enabled explicitly or via command line. [See our shiny new docs for how these work](http://squib.readthedocs.org/en/latest/build_groups.html).

RELEASE TODO.md

@@ -9,7 +9,8 @@ Be sure to remember to do the following for releases. (Copy into a GitHub issue)
  - [ ] `rake sanity`, and check visually
  - [ ] Travis is passing on dev branch
  - [ ] Merge master branch
- - [ ] Push master branch
+ - [ ] Merge release branch
+ - [ ] Push master and release branches
  - [ ] Create GitHub release tag
  - [ ] `gem push pkg/squib-x.y.z.gem`
  - [ ] Github milestone closed