I just converted our project from Eclipse and maven to Android Studio and gradle. project.properties is no longer the way to specify sdk version. Now there are properties in the build.gradle files. It'd be excellent if this plugin could somehow grab the value from there instead of us storing it in 2 places.
I suppose a workaround would be to still use project.properties and I can instead read project.properties myself from the gradle scripts and use that for the android compileSdkVersion. Pro: one version, Con: non-standard script.