* Added and used boundary_plugin library.
* Added support for retrying (with timeout) AWS calls.
* Various bugfixes.
* Added support for temporary file status store to keep track of sent samples in a persistent way (between plugin restarts).
Checkpoint to getting historical values upon restart.
Added support for reporting metrics historically for any time the plugin was down.  This required pretty big format changes.
Various bugfixes.
* Added README.md
* Removed test run configuration