Declare user_email when setting up fixtures for `count_user_posts()` tests.

Because `setUpBeforeClass()` is called statically and creates its own factory
object, the iterator logic from previous tests is not carried over to these
fixtures, and we risk the possibility of user_email clashes when the tests are
run in certain limited configurations.
Built from https://develop.svn.wordpress.org/trunk@30512


git-svn-id: http://core.svn.wordpress.org/trunk@30501 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.1-beta2-30511';
+$wp_version = '4.1-beta2-30512';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.