VSCode Plugin v3.4 - Sept 3, 2019

[DevTools 0.1.5 Release Notes](https://groups.google.com/forum/#!searchin/flutter-announce/release$20notes
          sort:date/flutter-announce/_tBeov94GEk/8IMoZnV0DQAJ) - Aug 5, 2019

VSCode Plugin v3.3 - Aug 2, 2019

[IntelliJ Plugin M38 Release Notes](https://groups.google.com/forum/#!searchin/flutter-announce/intellij
          sort:date/flutter-announce/-LQPz3C3JAM/ZR2WnOklEQAJ) - Aug 2, 2019