attempting to merge https://github.com/github/gitignore/pull/310

Wordpress.gitignore

@@ -1,19 +1,14 @@
 .htaccess
-wp-*.php
-xmlrpc.php
-wp-admin/
-wp-includes/
+wp-config.php
 wp-content/uploads/
 wp-content/blogs.dir/
-wp-content/upgrade/*
-wp-content/backup-db/*
+wp-content/upgrade/
+wp-content/backup-db/
 wp-content/advanced-cache.php
 wp-content/wp-cache-config.php
-wp-content/cache/*
-wp-content/cache/supercache/*
-wp-content/w3tc/*
 sitemap.xml
-sitemap.xml.gz
-readme.html
-license.txt
 *.log
+wp-content/cache/
+wp-content/backups/
+sitemap.xml
+sitemap.xml.gz