restructured file system, started port to v2.

--HG--
rename : conf/server/example.com.conf => conf/nginx/example.com.conf
rename : conf/server/example.com.https.conf => conf/nginx/example.com.https.conf
rename : conf/server/nginx.conf => conf/nginx/nginx.conf
rename : conf/mongo.ini => conf/php/mongo.ini
rename : 7_exim.sh => scripts/exim.sh
rename : 8_mongo.sh => scripts/mongo.sh
rename : 2_mysql.sh => scripts/mysql.sh
rename : 4_php.sh => scripts/php.sh
rename : src/init-deb.sh => src/nginx