Cherry-pick "Refactor ctor into small parts to allow fine-tuning in SparkPolymer"
Reconcile with main UI: start with overriding all ctor parts
Merge branch 'master'
Finished reconciling with main UI
appName = "SparkPolymer"
Use spark-buttons for + and - in the theme selector in the menu
Plumb Bootjack styles down to spark-button
Allow author (Bootjack) styles for spark-select and spark-splitter.
Merge pull request #276 from ussuri/catch-up-to-main-ui

Catch up to main non-polymer UI