…he DHT mechanism. Added a wildcard listener in the listener_map (of the TrustChainCommunity class) whose associated listeners are called regardless of block type. This wildcard is used to publish newly added to the TrustChainDB blocks to the DHT. The callback for this mechanism also defines behavior which disallows the same block from being published twice to the DHT. It is now possible to retrieve the latest TrustChain block of some peer via a HTTP request. Created a new test set for the newly added block retrieval mechanism. In addition to this, made a few changes to the REST API test suite in terms of the communication modules, such as moving classes from one module to another and creating new modules which host logic for HTTP requests and communication for specific endpoints.

…he node's secret key. In addition to this, this signature will be used on the receiving end for verifying the faithfulness of the chunks and, implicitly, of the block. Chunks will also be published under a new type of payload class, called DHTBlockPayload. The public key will be used (together with a special suffix) for publishing a block to the DHT (it should be mentioned that the raw key will be hashed before publishing).

…BlockPayload. Removed the dht.storage.get and replaced them with dht.find_values calls, which are handled asynchronously. Finally, made a few changes and additions to the test_dht_endpoint module.