Project: mesos
Issue MESOS-3558: Implement  HTTPCommandExecutor that uses the Executor Library 
Instead of using the {{MesosExecutorDriver}} , we should make the {{CommandExecutor}} in {{src/launcher/executor.cpp}} use the new Executor HTTP Library that we create in {{MESOS-3550}}. This would act as a good validation of the {{HTTP API}} implementation.
Story points: 13