* remove the validator check for atom

* remove the atom launch config

* review comments

* cleanup obtaining user home directory path
* refactor doctor and detect IntelliJ on Mac
* fix detect Flutter plugin for IntelliJ

* make flutter create less chatty

* output generated file count; mention lib/main.dart

* show device list in flutter doctor output
fixes https://github.com/flutter/flutter/issues/5625

* avoid sending analytics on ci systems

* review comments

* better messaging about windows support

* fix lints

* add the dart vm version to flutter doctor

* drop the dart vm change