Add a commit number to the 4.4 branch so that branch nightly updates are automatically installed again.

Background Updates (even for development releases) don't install if `$wp_version == $offered_version`, without a commit number in `$wp_version` testers are forced to manually update.

Built from https://develop.svn.wordpress.org/branches/4.4@36378


git-svn-id: http://core.svn.wordpress.org/branches/4.4@36345 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.4.2-alpha';
+$wp_version = '4.4.2-alpha-36378';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.