REST API: Fix error in Request tests.

On the 21st of November, 2014, I committed tests for WP_REST_Request
to the API plugin. Although I didn't realise at the time, I was
causing my future self to go through hours of sufferring.

Unfortunately, I forgot to call parent::setUp() which would break
the tests in subtle ways in the future and would ruin the good part
of my day.

Let this be a warning to all of you who write future unit tests.

See f0396be17e
for the original commit.

Built from https://develop.svn.wordpress.org/trunk@36678


git-svn-id: http://core.svn.wordpress.org/trunk@36645 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.5-alpha-36677';
+$wp_version = '4.5-alpha-36678';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.