more codeclimate fixes

lib/emitter/docs/examples/AssignmentGraded.json

@@ -84,7 +84,7 @@
     "verb": {
         "id": "http:\/\/adlnet.gov\/expapi\/verbs\/scored",
         "display": {
-            "en": "recieved grade for"
+            "en": "received grade for"
         }
     },
     "result": {

lib/emitter/src/Events/AssignmentGraded.php

 <?php namespace XREmitter\Events;
 
 class AssignmentGraded extends Event {
-    protected static $verb_display = [
-        'en' => 'recieved grade for'
+    protected static $verbDisplay = [
+        'en' => 'received grade for'
     ];
 
     /**

lib/emitter/src/Events/AssignmentSubmitted.php

 <?php namespace XREmitter\Events;
 
 class AssignmentSubmitted extends Event {
-    protected static $verb_display = [
+    protected static $verbDisplay = [
         'en' => 'completed'
     ];
 

lib/emitter/src/Events/AttemptCompleted.php

 <?php namespace XREmitter\Events;
 
 class AttemptCompleted extends Event {
-    protected static $verb_display = [
+    protected static $verbDisplay = [
         'en' => 'completed'
     ];
 

lib/emitter/src/Events/AttemptStarted.php

 <?php namespace XREmitter\Events;
 
 class AttemptStarted extends Event {
-    protected static $verb_display = [
+    protected static $verbDisplay = [
         'en' => 'started'
     ];
 

lib/emitter/src/Events/Attended.php

 <?php namespace XREmitter\Events;
 
 class Attended extends Event {
-    protected static $verb_display = [
+    protected static $verbDisplay = [
         'en' => 'attended'
     ];
 

lib/emitter/src/Events/CourseCompleted.php

@@ -19,7 +19,7 @@ class CourseCompleted extends Event
      * Sets the language equivalent for completed. 
      * @var array
      */
-    protected static $verb_display = [
+    protected static $verbDisplay = [
         'en' => 'completed'
     ];
     /**

lib/emitter/src/Events/EnrolmentCreated.php

 <?php namespace XREmitter\Events;
 
 class EnrolmentCreated extends Event {
-    protected static $verb_display = [
+    protected static $verbDisplay = [
         'en' => 'enrolled onto'
     ];
 

lib/emitter/src/Events/Event.php

@@ -2,7 +2,7 @@
 use \stdClass as PhpObj;
 
 abstract class Event extends PhpObj {
-    protected static $verb_display;
+    protected static $verbDisplay;
 
     /**
      * Reads data for an event.
@@ -130,8 +130,8 @@ abstract class Event extends PhpObj {
 
     protected function readVerbDisplay($opts) {
         $lang = $opts['context_lang'];
-        $lang = isset(static::$verb_display[$lang]) ? $lang : array_keys(static::$verb_display)[0];
-        return [$lang => static::$verb_display[$lang]];
+        $lang = isset(static::$verbDisplay[$lang]) ? $lang : array_keys(static::$verbDisplay)[0];
+        return [$lang => static::$verbDisplay[$lang]];
     }
 
 }

lib/emitter/src/Events/EventEnrol.php

 <?php namespace XREmitter\Events;
 
 class EventEnrol extends Event {
-    protected static $verb_display = [
+    protected static $verbDisplay = [
         'en' => 'registered for'
     ];
 

lib/emitter/src/Events/EventUnenrol.php

 <?php namespace XREmitter\Events;
 
 class EventUnenrol extends EventEnrol {
-    protected static $verb_display = [
+    protected static $verbDisplay = [
         'en' => 'unregistered from'
     ];
 

lib/emitter/src/Events/QuestionAnswered.php

 <?php namespace XREmitter\Events;
 
 class QuestionAnswered extends Event {
-    protected static $verb_display = [
+    protected static $verbDisplay = [
         'en' => 'answered'
     ];
 

lib/emitter/src/Events/ScormEvent.php

@@ -40,7 +40,7 @@ class ScormEvent extends Event {
                 $verb = 'completed';
         }
 
-        static::$verb_display = ['en' => $verb];
+        static::$verbDisplay = ['en' => $verb];
 
         $lang = [
             'id' => $verbUrl,

lib/emitter/src/Events/ScormLaunched.php

 <?php namespace XREmitter\Events;
 
 class ScormLaunched extends Event {
-    protected static $verb_display = [
+    protected static $verbDisplay = [
         'en' => 'launched'
     ];
 

lib/emitter/src/Events/ScormScoreRawSubmitted.php

 <?php namespace XREmitter\Events;
 
 class ScormScoreRawSubmitted extends ScormEvent {
-    protected static $verb_display;
+    protected static $verbDisplay;
 
     /**
      * Reads data for an event.

lib/emitter/src/Events/ScormStatusSubmitted.php

 <?php namespace XREmitter\Events;
 
 class ScormStatusSubmitted extends ScormEvent {
-    protected static $verb_display = [
+    protected static $verbDisplay = [
         'en' => 'completed'
     ];
 

lib/emitter/src/Events/UserLoggedin.php

 <?php namespace XREmitter\Events;
 
 class UserLoggedin extends Event {
-    protected static $verb_display = [
+    protected static $verbDisplay = [
         'en' => 'logged in to'
     ];
 

lib/emitter/src/Events/UserLoggedout.php

 <?php namespace XREmitter\Events;
 
 class UserLoggedout extends Event {
-    protected static $verb_display = [
+    protected static $verbDisplay = [
         'en' => 'logged out of'
     ];
 

lib/emitter/src/Events/UserRegistered.php

 <?php namespace XREmitter\Events;
 
 class UserRegistered extends Event {
-    protected static $verb_display = [
+    protected static $verbDisplay = [
         'en' => 'registered to'
     ];
 

lib/emitter/src/Events/Viewed.php

 <?php namespace XREmitter\Events;
 
 abstract class Viewed extends Event {
-    protected static $verb_display = [
+    protected static $verbDisplay = [
         'en' => 'viewed'
     ];