updated gitignore
some mods
commented out add_header X-Frame_Options
patched according to https://github.com/perusio/drupal-with-nginx/pull/173
disabled fastcgi_cache_lock
disabled fcgi microcache for auth users, and made it applicable for only anon users
disable/comment out update.php security
added drupal6 config from master
commented out track_uploads
changed fastcgi_buffers and added fastcgi_buffer_size
included map_drupal6.conf for drupal 6
commented out auth_basic for installation