Update angular-redux-starter

[SethDavenport]

This is due for a toolchain update; we will be starting more of these soon.

• [x] yarn in circle-ci
• [x] webpack2 & tree shaking?
• [x] instalbul threshold in CI
• [x] general package updates

[SethDavenport]

Use your judgement but some ideas incude:

• yarn in circle-ci
• webpack2 & tree shaking?
• instalbul threshold in CI
• general package updates
• whatever else you feel is useful

[SethDavenport]

Varun mentioned he might have time in a week or so to look at this.