We have released a new version of the cordova push plugin the new version 1.0.2 a new feature is support for external configuration. Now instead of using code you can store the variantId and secrets into a separate json file. With more platforms support coming this will not pollute your code anymore.
Check out the 1.0.x branch to give it a spin. Here are the release notes:
Bug
- [AGCORDOVA-36] - Make Push Plugin work again with Android < 4.4