add default sorters for all numeric columns

Give table sorter explicit sorts for each column that involves numerical
values.

	modified:   web/tmpl/CoGeBlast.tmpl
fix head element from being placed in the body

	modified:   tmpl/footer.tmpl
	modified:   tmpl/generic_page.tmpl
	modified:   tmpl/header.tmpl
link the favicon into the web directory

	new file:   web/favicon.ico
remove dotplot options from json filename

The dotplot options cause the json to regenerate a duplicate file.
Remove encoding the options in the json filename. This eliminates the
duplication occuring.

	modified:   SynMap_new.pl
Update wikifeed styles

The feed styles now display properly for firefox. The change increases
the overall size slightly.

	modified:   web/css/coge.css