nodewait_start_connection() is split to the two functions, nodewait_start_resolve() and nodewait_start_connect(), each starts new thread for resolving and connecting. Between resolving and connecting check for existing connections with resolved address is performed

git-svn-id: svn://localhost/project_picapica/trunk@251 fb96df88-216d-11de-830c-f3023f12d8ac