Fix function misspell in fSchema

[garex]

I dont' believe that someone is here, but who knows?

For those, who will have same issue, workaround is to add this:

if (!function_exists('strotlower')) {function strotlower($str) {return strtolower($str);}}

[sean-olson]

Thanks. I guess Will has moved on to other projects, but there are some, like myself, who continue to work with this awesome library he created.