remove un-necessary comment blocks.
add support for shutdown().
This API allows for the GATT/GAP state to be purged.
Release 0.2.4
=============

API enhancements to support purging of GATT/GAP state.

Enhancements
~~~~~~~~~~~~

* Add support for API BLEDevice::shutdown() to purge the BLE stack of
  GATT and GAP state.  BLEDevice::init() should be called before
  restoring state.

Bugfixes
~~~~~~~~

Compatibility
~~~~~~~~~~~~~

This release is backward compatible with 0.2.3.