Adding isJson() and wantsJson() to Request

Needs to be documented.

requests.md

@@ -168,16 +168,23 @@ The `Request` class provides many methods for examining the HTTP request for you
 
  $value = Request::server('PATH_INFO');
 
+#### Determining If The Request Is Over HTTPS
+
+ if (Request::secure())
+ {
+  //
+ }
+
 #### Determine If The Request Is Using AJAX
 
  if (Request::ajax())
  {
   //
  }
 
-#### Determining If The Request Is Over HTTPS
+#### Detect any type of JSON request
 
- if (Request::secure())
+ if (Request::ajax() or Request::isJson() or Request::wantsJson())
  {
   //
  }
@@ -189,4 +196,4 @@ The `Request::format` method will return the requested response format based on
  if (Request::format() == 'json')
  {
   //
- }
+ }