Added system files to Wordpress.gitignore

Wordpress.gitignore

 .htaccess
+wp-activate.php
+wp-app.php
+wp-atom.php
+wp-blog-header.php
+wp-comments-post.php
+wp-commentsrss2.php
+wp-config-sample.php
 wp-config.php
-wp-content/backup-db/*
-wp-content/cache/*
-wp-content/cache/supercache/*
+wp-cron.php
+wp-feed.php
+wp-links-opml.php
+wp-load.php
+wp-login.php
+wp-mail.php
+wp-pass.php
+wp-rdf.php
+wp-register.php
+wp-rss.php
+wp-rss2.php
+wp-settings.php
+wp-signup.php
+wp-trackback.php
+xmlrpc.php
+wp-admin/
+wp-includes/
+wp-content/uploads/
 wp-content/upgrade/*
+wp-content/backup-db/*
 wp-content/advanced-cache.php
 wp-content/wp-cache-config.php
-wp-content/uploads/
+wp-content/cache/*
+wp-content/cache/supercache/*
 sitemap.xml
 sitemap.xml.gz
\ No newline at end of file