fixed all lint errors except ones which require refactoring of code

lib/appenders/hookio.js

@@ -1,7 +1,8 @@
-var log4js = require('../log4js');
-var layouts = require('../layouts');
-var Hook = require('hook.io').Hook;
-var util = require('util');
+"use strict";
+var log4js = require('../log4js')
+, layouts = require('../layouts')
+, Hook = require('hook.io').Hook
+, util = require('util');
 
 var Logger = function createLogger(options) {
   var self = this;
@@ -13,7 +14,7 @@ var Logger = function createLogger(options) {
       actualAppender(loggingEvent);
     });
   });
-}
+};
 util.inherits(Logger, Hook);
 
 function deserializeLoggingEvent(loggingEvent) {
@@ -42,7 +43,7 @@ function getBufferedHook(hook, eventName) {
   hook.on('hook::ready', function emptyBuffer() {
     hookBuffer.forEach(function logBufferItem(loggingEvent) {
       hook.emit(eventName, loggingEvent);
-    })
+    });
     hookReady = true;
   });
 
@@ -52,7 +53,7 @@ function getBufferedHook(hook, eventName) {
     } else {
       hookBuffer.push(loggingEvent);
     }
-  }
+  };
 }
 
 function createAppender(hookioOptions) {