using new marker type L.Control.SearchMarker
added BUGS file

--HG--
rename : demos/tools/cities15000.raw.txt => tools/cities15000.raw.txt
rename : demos/tools/csv2json.php => tools/csv2json.php
rename : demos/tools/htmlcolors.txt => tools/htmlcolors.txt
rename : demos/tools/updateTODO.sh => tools/update-TODO-BUGS.sh