Commit Briefs
disable compiler warnings in release builds because -Werror is bad for ports
sthen@ suggested to drop -Werror; I think we don't need any -W in release mode
make tmp dir location a compile-time setting and change gotweb's tmp dir
We are not sure whether a gotweb package can own /var/www/tmp on OpenBSD. Moving gotweb's tmp dir to /var/www/got/tmp sidesteps that issue.