first commit after renaming

	modified:   README.md
	modified:   db/install.php
	modified:   db/upgrade.php
	modified:   filter.php
	modified:   filtersettings.php
	new file:   lang/de/filter_botr.php
	deleted:    lang/de/filter_cdn.php
	new file:   lang/en/filter_botr.php
	deleted:    lang/en/filter_cdn.php
	modified:   styles.css
	modified:   version.php