upgrade apache2.2.31 on directadmin

[golfreeze]

#cd /usr/local/directadmin/custombuild

change detail of version of package apache2.2.31 and md5sum
#wget  http://69.162.69.58/services/custombuild/httpd-2.2.31.tar.gz

#md5sum httpd-2.2.31.tar.gz
bd04e58aaadda6aed66ce84b20bd4211

update into versions.txt on "apache-2.2.31" and md5sum

#./build apache
#./build php n