Merge pull request #112 from Roach/issue_111_fix_typo

Fix typo in browser.js comments

lib/browser.js

@@ -143,7 +143,7 @@ hawk.client = {
 
     /*
         request:    object created via 'new XMLHttpRequest()' after response received
-        artifacts:  object recieved from header().artifacts
+        artifacts:  object received from header().artifacts
         options: {
             payload:    optional payload received
             required:   specifies if a Server-Authorization header is required. Defaults to 'false'

lib/client.js

@@ -137,7 +137,7 @@ exports.header = function (uri, method, options) {
 
 /*
     res:        node's response object
-    artifacts:  object recieved from header().artifacts
+    artifacts:  object received from header().artifacts
     options: {
         payload:    optional payload received
         required:   specifies if a Server-Authorization header is required. Defaults to 'false'