[FAB-5382] Add a promise return to method's JSDoc

The JSDoc for these methods need to state that they return a promise for the
object as opposed to returning the object directly.

BaseClient.js  --  newDefaultKeyValueStore()
Channel.js  -- queryBlock(), queryBlockByHash(), queryInfo(), queryTransaction(), and queryInstantiatedChaincodes()

Change-Id: Ibdcfb15bc347e09ff2001498a10d73ca146c0c47
Signed-off-by: Eric Vaughn <eric.vaughn@blocledger.com>

fabric-client/lib/BaseClient.js

@@ -67,7 +67,7 @@ var BaseClient = class {
 	 *
 	 * @param {Object} options Specific to the implementation, for initializing the instance. For the built-in
 	 * file-based implementation, this requires a single property <code>path</code> to the top-level folder for the store
-	 * @returns {module:api.KeyValueStore} An instance of the KeyValueStore implementation
+	 * @returns {Promise} A Promise for a {@link module:api.KeyValueStore} instance of the KeyValueStore implementation
 	 */
 	static newDefaultKeyValueStore(options) {
 		return sdkUtils.newKeyValueStore(options);

fabric-client/lib/Channel.js

@@ -747,7 +747,8 @@ var Channel = class {
 	 *
 	 * @param {Peer} target - Optional. The peer that is the target for this query.  If no target is passed,
 	 *                        the query will use the first peer that was added to the channel object.
-	 * @returns {BlockchainInfo} With blockchain height, current block hash and previous block hash.
+	 * @returns {Promise} A Promise for a {@link BlockchainInfo} object with blockchain height,
+	 *                        current block hash and previous block hash.
 	 */
 	queryInfo(target) {
 		logger.debug('queryInfo - start');
@@ -819,7 +820,7 @@ var Channel = class {
 	 * @param {byte[]} block hash of the Block in question.
 	 * @param {Peer} target - Optional. The peer to send the query to. If no target is passed,
 	 *                        the query is sent to the first peer that was added to the channel object.
-	 * @returns {Block} The block matching the hash, fully decoded into an object.
+	 * @returns {Promise} A Promise for a {@link Block} matching the hash, fully decoded into an object.
 	 */
 	queryBlockByHash(blockHash, target) {
 		logger.debug('queryBlockByHash - start');
@@ -881,7 +882,7 @@ var Channel = class {
 	 * @param {number} blockNumber - The number of the Block in question.
 	 * @param {Peer} target - Optional. The peer to send this query to. If no target is passed,
 	 *                        the query is sent to the first peer that was added to the channel object.
-	 * @returns {Block} The block at the blockNumber slot in the ledger, fully decoded into an object.
+	 * @returns {Promise} A Promise for a {@link Block} at the blockNumber slot in the ledger, fully decoded into an object.
 	 */
 	queryBlock(blockNumber, target) {
 		logger.debug('queryBlock - start blockNumber %s',blockNumber);
@@ -945,7 +946,7 @@ var Channel = class {
 	 * @param {string} tx_id - The id of the transaction
 	 * @param {Peer} target - Optional. The peer to send this query to. If no target is passed,
 	 *                        the query is sent to the first peer that was added to the channel object.
-	 * @returns {ProcessedTransaction} The fully decoded ProcessedTransaction object.
+	 * @returns {Promise} A Promise for a fully decoded {@link ProcessedTransaction} object.
 	 */
 	queryTransaction(tx_id, target) {
 		logger.debug('queryTransaction - start transactionID %s',tx_id);
@@ -1007,7 +1008,7 @@ var Channel = class {
 	 *
 	 * @param {Peer} target - Optional. The peer to send this query to. If no target is passed,
 	 *                        the query is sent to the first peer that was added to the channel object.
-	 * @returns {ChaincodeQueryResponse} A fully decoded ChaincodeQueryResponse object
+	 * @returns {Promise} A Promise for a fully decoded {@link ChaincodeQueryResponse} object.
 	 */
 	queryInstantiatedChaincodes(target) {
 		logger.debug('queryInstantiatedChaincodes - start');