rationalizing logs

updating mapping to more constricted set of logs per
https://github.com/RackHD/RackHD/issues/34

**NOTE**: Requires RackHD/on-core#48 to be
committed prior as it adds the synonym 'critical' to the existing 'crit'
level.

index.js

@@ -29,7 +29,7 @@ core.start()
     ).start();
 })
 .catch(function(e) {
-    logger.error("Error starting server", {
+    logger.critical("Error starting server", {
         error: e
     });
     process.nextTick(function() {

lib/message-handler.js

@@ -61,7 +61,7 @@ function messageHandlerFactory(
             }
         })
         .catch(function(err) {
-            logger.error("Failed to get bootfile information for " + packetData.chaddr.address, {
+            logger.warning("Failed to get bootfile information for " + packetData.chaddr.address, {
                 error: err
             });
         });
@@ -310,7 +310,7 @@ function messageHandlerFactory(
 
         if (action === 'discover') {
             assert.object(this.packetData);
-            logger.silly(
+            logger.debug(
                 "Unknown node %s. Sending down default bootfile."
                     .format(this.packetData.chaddr.address)
             );

lib/parser.js

@@ -328,7 +328,7 @@ function ParserFactory(protocol, Logger, assert) {
             }
 
             if (unhandledOptions.length) {
-                this.logger.silly('Unhandled DHCP options (' +
+                this.logger.debug('Unhandled DHCP options (' +
                     unhandledOptions.map(function (option) {
                     return option.code + ':' + option.len;
                 }).join() + ')', {

lib/server.js

@@ -36,7 +36,7 @@ function serverFactory(core, messageHandler, Logger) {
         if (data.isefi === true) {
             currentOutport = this.outportEFI;
         }
-        logger.info('current OutPort => %d'.format(currentOutport));
+        logger.debug('current OutPort => %d'.format(currentOutport));
         this.server.send(packetBuffer, 0, packetBuffer.length, currentOutport,
                 destination, sendCallback);
     };
@@ -49,7 +49,7 @@ function serverFactory(core, messageHandler, Logger) {
         });
 
         self.server.on('error', function(err) {
-            logger.emerg("proxyDHCP server error: ", err);
+            logger.critical("proxyDHCP server error: ", err);
             process.nextTick(function() {
                 process.exit(1);
             });