Begin removing several dependencies on Config object

gateway/httpgateway.cpp

@@ -20,21 +20,11 @@ SOFTWARE.
 */
 #include "httpgateway.h"
 #include "../logger.h"
-HttpGateway::HttpGateway(const Config &config)
+HttpGateway::HttpGateway(std::string listenaddr, int port, uint64_t maxPayloadLength)
 {
-	this->listenaddr = config.getConfig("http.listenaddr");
-	if(this->listenaddr.empty())
-	{
-		throw new std::runtime_error("No http.listenaddr in config file");
-	}
-	std::string listenport = config.getConfig("http.listenport");
-	if(listenport.empty())
-	{
-		throw new std::runtime_error("No http.listenport in config file");
-	}
-	this->listenport = std::stoi(listenport);
-
-	this->maxPayloadLength = config.max_payload_length;
+	this->listenaddr = listenaddr;
+	this->listenport = port;
+	this->maxPayloadLength = maxPayloadLength;
 }
 
 bool HttpGateway::keepReading()