MINOR: server: Make 'default-server' support 'addr' keyword.

This patch makes 'default-server' support 'addr' setting.
The code which was responsible of parsing 'server' 'addr' setting
has moved from parse_server() to implement a new parser
callable both as 'default-server' and 'server' 'addr' setting parser.

Should not break anything.
1 file changed