bin_spec: make sure we reset local_node_bin's path after tests.
Fixed SIGINT/SIGTERM kill signals in cli_controller_spec.
Removed unused requires in cli_controller.
We can test 'no config' without the need of spawn.
Added test/utils/cli_sandbox.
Agent CLI: Exit explicitly on if (run_time > 2);
Fix for test/utils/cli_sandbox, so it can be called multiple times.
Test behavior of uncaughtException and existing pid using cli_sandbox.