Added get channel logs

lib/Client/Client.js

@@ -194,6 +194,29 @@ var Client = (function (_EventEmitter) {
 		});
 	};
 
+	// def getChannelLogs
+
+	Client.prototype.getChannelLogs = function getChannelLogs(where) {
+		var limit = arguments.length <= 1 || arguments[1] === undefined ? 500 : arguments[1];
+		var options = arguments.length <= 2 || arguments[2] === undefined ? {} : arguments[2];
+		var callback = arguments.length <= 3 || arguments[3] === undefined ? function (err, logs) {} : arguments[3];
+
+		var self = this;
+		return new Promise(function (resolve, reject) {
+			if (typeof options === "function") {
+				// options is the callback
+				callback = options;
+			}
+			self.internal.getChannelLogs(where, limit, options).then(function (logs) {
+				callback(null, logs);
+				resolve(logs);
+			})["catch"](function (e) {
+				callback(e);
+				reject(e);
+			});
+		});
+	};
+
 	return Client;
 })(EventEmitter);