remove svn, apple and temporary files from the repository & update gitignore
up drupal to 6.28
up mod admin_menu
up mod backup_migrate
up mod backup_migrate_files
up mod block_access
up mod block_class
up mod boost
up mod comment_notify
up mod conditional_fields
up mod ctools
up mod custom_search
up mod date
up mod domain
up mod features
up mod filefield
up mod geonames
up mod globalredirect
up mod google_analytics
up mod htmlmail